979656618 has 32 divisors (see below), whose sum is σ = 2055974400. Its totient is φ = 310601456.

The previous prime is 979656593. The next prime is 979656661. The reversal of 979656618 is 816656979.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 4873 + ... + 44531.

It is an arithmetic number, because the mean of its divisors is an integer number (64249200).

Almost surely, 2^979656618 is an apocalyptic number.

979656618 is an abundant number, since it is smaller than the sum of its proper divisors (1076317782).

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

979656618 is a wasteful number, since it uses less digits than its factorization.

979656618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39866.

The product of its digits is 4898880, while the sum is 57.

The square root of 979656618 is about 31299.4667366714. The cubic root of 979656618 is about 993.1723621215.

The spelling of 979656618 in words is "nine hundred seventy-nine million, six hundred fifty-six thousand, six hundred eighteen".