670,421 in words
670,421
six hundred and seventy thousand four hundred and twenty-one
670,421 is written six hundred and seventy thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- six hundred and seventy thousand four hundred and twenty-first
- Expanded form
- 600,000 + 70,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 6 | 600,000 |
| ten thousands | 7 | 70,000 |
| thousands | 0 | 0 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 251, 2,671 and 670,421 (4 factors)
- First 10 multiples
- 670,421, 1,340,842, 2,011,263, 2,681,684, 3,352,105, 4,022,526, 4,692,947, 5,363,368, 6,033,789, 6,704,210
- Square
- 670,421 × 670,421 = 449,464,317,241
- Square root
- ≈ 818.79
- Sum of the digits
- 6 + 7 + 0 + 4 + 2 + 1 = 20
- Rounded to the nearest 10
- 670,420
- Rounded to the nearest 100
- 670,400
- Rounded to the nearest 1000
- 670,000
- Number before
- 670,420
- Number after
- 670,422
- In binary
10100011101011010101
Quick check
What number comes just after 670,421?
Show the answer
670,422
Is 670,421 even or odd?
Show the answer
Odd
What is 670,421 + 10?
Show the answer
670,431
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 670,421 in words?
670,421 is written "six hundred and seventy thousand four hundred and twenty-one".
Is 670,421 a prime number?
No. 670,421 is a composite number, because it has more than two factors.
What are the factors of 670,421?
The factors of 670,421 are 1, 251, 2,671 and 670,421.