979970 has 24 divisors (see below), whose sum is σ = 1839996. Its totient is φ = 375648.

The previous prime is 979969. The next prime is 979987. The reversal of 979970 is 79979.

It can be written as a sum of positive squares in 2 ways, for example, as 978121 + 1849 = 989^2 + 43^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18464 + ... + 18516.

2⁹⁷⁹⁹⁷⁰ is an apocalyptic number.

979970 is a deficient number, since it is larger than the sum of its proper divisors (860026).

979970 is a wasteful number, since it uses less digits than its factorization.

979970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 35721, while the sum is 41.

The square root of 979970 is about 989.9343412570. The cubic root of 979970 is about 99.3278252680.

The spelling of 979970 in words is "nine hundred seventy-nine thousand, nine hundred seventy".