979627978 has 32 divisors (see below), whose sum is σ = 1728207360. Its totient is φ = 407741040.

The previous prime is 979627963. The next prime is 979627981. The reversal of 979627978 is 879726979.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103213 + ... + 112303.

It is an arithmetic number, because the mean of its divisors is an integer number (54006480).

Almost surely, 2^979627978 is an apocalyptic number.

979627978 is a deficient number, since it is larger than the sum of its proper divisors (748579382).

979627978 is a wasteful number, since it uses less digits than its factorization.

979627978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9322.

The product of its digits is 24004512, while the sum is 64.

The square root of 979627978 is about 31299.0092175455. The cubic root of 979627978 is about 993.1626836508.

Subtracting from 979627978 its reverse (879726979), we obtain a palindrome (99900999).

The spelling of 979627978 in words is "nine hundred seventy-nine million, six hundred twenty-seven thousand, nine hundred seventy-eight".