979947568 has 20 divisors (see below), whose sum is σ = 1981199088. Its totient is φ = 468670400.

The previous prime is 979947559. The next prime is 979947587. The reversal of 979947568 is 865749979.

It is a super-2 number, since 2×979947568² = 1920594472058229248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331083 + ... + 1331818.

Almost surely, 2^979947568 is an apocalyptic number.

It is an amenable number.

979947568 is an abundant number, since it is smaller than the sum of its proper divisors (1001251520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

979947568 is a wasteful number, since it uses less digits than its factorization.

979947568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662932 (or 2662926 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 64.

The square root of 979947568 is about 31304.1142343942. The cubic root of 979947568 is about 993.2706737447.

The spelling of 979947568 in words is "nine hundred seventy-nine million, nine hundred forty-seven thousand, five hundred sixty-eight".