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Country and language: Hong Kong

Country and language

997,021 in words

997,021

nine hundred and ninety-seven thousand and twenty-one

997,021 is written nine hundred and ninety-seven thousand and twenty-one.

Ways to write it

As an ordinal
nine hundred and ninety-seven thousand and twenty-first
Expanded form
900,000 + 90,000 + 7,000 + 20 + 1

Place value

PlaceDigitValue
hundred thousands9900,000
ten thousands990,000
thousands77,000
hundreds00
tens220
ones11

Number facts

Even or odd
Odd
Prime or composite
Prime
Factors
1 and 997,021 (2 factors)
First 10 multiples
997,021, 1,994,042, 2,991,063, 3,988,084, 4,985,105, 5,982,126, 6,979,147, 7,976,168, 8,973,189, 9,970,210
Square
997,021 × 997,021 = 994,050,874,441
Square root
≈ 998.51
Sum of the digits
9 + 9 + 7 + 0 + 2 + 1 = 28
Rounded to the nearest 10
997,020
Rounded to the nearest 100
997,000
Rounded to the nearest 1000
997,000
Number before
997,020
Number after
997,022
In binary
11110011011010011101

Quick check

  1. What number comes just after 997,021?

    Show the answer

    997,022

  2. Is 997,021 even or odd?

    Show the answer

    Odd

  3. What is 997,021 + 10?

    Show the answer

    997,031

Practise with a game

Frequently asked questions

How do you write 997,021 in words?

997,021 is written "nine hundred and ninety-seven thousand and twenty-one".

Is 997,021 a prime number?

Yes. 997,021 is a prime number: its only factors are 1 and 997,021.

What are the factors of 997,021?

The factors of 997,021 are 1 and 997,021.