789 in words
789
seven hundred and eighty-nine
789 is written seven hundred and eighty-nine.
Ways to write it
- As an ordinal
- seven hundred and eighty-ninth
- Roman numeral
- DCCLXXXIX
- Expanded form
- 700 + 80 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 7 | 700 |
| tens | 8 | 80 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 263 and 789 (4 factors)
- First 10 multiples
- 789, 1,578, 2,367, 3,156, 3,945, 4,734, 5,523, 6,312, 7,101, 7,890
- Square
- 789 × 789 = 622,521
- Square root
- ≈ 28.09
- Sum of the digits
- 7 + 8 + 9 = 24
- Rounded to the nearest 10
- 790
- Rounded to the nearest 100
- 800
- Number before
- 788
- Number after
- 790
- In binary
1100010101
Quick check
What number comes just after 789?
Show the answer
790
Is 789 even or odd?
Show the answer
Odd
What is 789 + 10?
Show the answer
799
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Roman Numerals
Read and write Roman numerals from I to 3,999.Frequently asked questions
How do you write 789 in words?
789 is written "seven hundred and eighty-nine".
Is 789 a prime number?
No. 789 is a composite number, because it has more than two factors.
What are the factors of 789?
The factors of 789 are 1, 3, 263 and 789.
How do you write 789 in Roman numerals?
789 in Roman numerals is DCCLXXXIX.