979911868 has 12 divisors (see below), whose sum is σ = 1846757080. Its totient is φ = 452266992.

The previous prime is 979911857. The next prime is 979911913. The reversal of 979911868 is 868119979.

It is a congruent number.

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, 9422178 + ... + 9422281.

Almost surely, 2^979911868 is an apocalyptic number.

It is an amenable number.

979911868 is a deficient number, since it is larger than the sum of its proper divisors (866845212).

979911868 is a wasteful number, since it uses less digits than its factorization.

979911868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18844476 (or 18844474 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 58.

The square root of 979911868 is about 31303.5440166126. The cubic root of 979911868 is about 993.2586118090.

The spelling of 979911868 in words is "nine hundred seventy-nine million, nine hundred eleven thousand, eight hundred sixty-eight".