979311856 has 40 divisors (see below), whose sum is σ = 1970699760. Its totient is φ = 471043584.

The previous prime is 979311847. The next prime is 979311923. The reversal of 979311856 is 658113979.

It is a super-2 number, since 2×979311856² = 1918103422604329472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43395 + ... + 61981.

It is an arithmetic number, because the mean of its divisors is an integer number (49267494).

Almost surely, 2^979311856 is an apocalyptic number.

It is an amenable number.

979311856 is an abundant number, since it is smaller than the sum of its proper divisors (991387904).

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

979311856 is a wasteful number, since it uses less digits than its factorization.

979311856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18721 (or 18715 counting only the distinct ones).

The product of its digits is 408240, while the sum is 49.

The square root of 979311856 is about 31293.9587780134. The cubic root of 979311856 is about 993.0558422926.

The spelling of 979311856 in words is "nine hundred seventy-nine million, three hundred eleven thousand, eight hundred fifty-six".