397,720 in words
397,720
three hundred and ninety-seven thousand seven hundred and twenty
397,720 is written three hundred and ninety-seven thousand seven hundred and twenty.
Ways to write it
- As an ordinal
- three hundred and ninety-seven thousand seven hundred and twentieth
- Expanded form
- 300,000 + 90,000 + 7,000 + 700 + 20
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 3 | 300,000 |
| ten thousands | 9 | 90,000 |
| thousands | 7 | 7,000 |
| hundreds | 7 | 700 |
| tens | 2 | 20 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 163, 244, 305, 326, 488, 610, 652, 815, 1,220, 1,304, 1,630, 2,440, 3,260, 6,520, 9,943, 19,886, 39,772, 49,715, 79,544, 99,430, 198,860 and 397,720 (32 factors)
- First 10 multiples
- 397,720, 795,440, 1,193,160, 1,590,880, 1,988,600, 2,386,320, 2,784,040, 3,181,760, 3,579,480, 3,977,200
- Square
- 397,720 × 397,720 = 158,181,198,400
- Square root
- ≈ 630.65
- Sum of the digits
- 3 + 9 + 7 + 7 + 2 + 0 = 28
- Rounded to the nearest 10
- 397,720
- Rounded to the nearest 100
- 397,700
- Rounded to the nearest 1000
- 398,000
- Number before
- 397,719
- Number after
- 397,721
- In binary
1100001000110011000
Quick check
What number comes just after 397,720?
Show the answer
397,721
Is 397,720 even or odd?
Show the answer
Even
What is 397,720 + 10?
Show the answer
397,730
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 397,720 in words?
397,720 is written "three hundred and ninety-seven thousand seven hundred and twenty".
Is 397,720 a prime number?
No. 397,720 is a composite number, because it has more than two factors.
What are the factors of 397,720?
The factors of 397,720 are 1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 163, 244, 305, 326, 488, 610, 652, 815, 1,220, 1,304, 1,630, 2,440, 3,260, 6,520, 9,943, 19,886, 39,772, 49,715, 79,544, 99,430, 198,860 and 397,720.