979081920 has 84 divisors (see below), whose sum is σ = 3367643760. Its totient is φ = 261087744.

The previous prime is 979081919. The next prime is 979081937. The reversal of 979081920 is 29180979.

979081920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 167100 + ... + 172859.

Almost surely, 2^979081920 is an apocalyptic number.

979081920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

979081920 is an abundant number, since it is smaller than the sum of its proper divisors (2388561840).

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

979081920 is a wasteful number, since it uses less digits than its factorization.

979081920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339982 (or 339969 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 979081920 is about 31290.2847542172. The cubic root of 979081920 is about 992.9781152097.

The spelling of 979081920 in words is "nine hundred seventy-nine million, eighty-one thousand, nine hundred twenty".