998,821 in words
998,821
nine hundred and ninety-eight thousand eight hundred and twenty-one
998,821 is written nine hundred and ninety-eight thousand eight hundred and twenty-one.
Ways to write it
- As an ordinal
- nine hundred and ninety-eight thousand eight hundred and twenty-first
- Expanded form
- 900,000 + 90,000 + 8,000 + 800 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 9 | 900,000 |
| ten thousands | 9 | 90,000 |
| thousands | 8 | 8,000 |
| hundreds | 8 | 800 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 23, 43,427 and 998,821 (4 factors)
- First 10 multiples
- 998,821, 1,997,642, 2,996,463, 3,995,284, 4,994,105, 5,992,926, 6,991,747, 7,990,568, 8,989,389, 9,988,210
- Square
- 998,821 × 998,821 = 997,643,390,041
- Square root
- ≈ 999.41
- Sum of the digits
- 9 + 9 + 8 + 8 + 2 + 1 = 37
- Rounded to the nearest 10
- 998,820
- Rounded to the nearest 100
- 998,800
- Rounded to the nearest 1000
- 999,000
- Number before
- 998,820
- Number after
- 998,822
- In binary
11110011110110100101
Quick check
What number comes just after 998,821?
Show the answer
998,822
Is 998,821 even or odd?
Show the answer
Odd
What is 998,821 + 10?
Show the answer
998,831
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 998,821 in words?
998,821 is written "nine hundred and ninety-eight thousand eight hundred and twenty-one".
Is 998,821 a prime number?
No. 998,821 is a composite number, because it has more than two factors.
What are the factors of 998,821?
The factors of 998,821 are 1, 23, 43,427 and 998,821.