79979116 has 12 divisors (see below), whose sum is σ = 159958288. Its totient is φ = 34276752.

The previous prime is 79979087. The next prime is 79979117. The reversal of 79979116 is 61197997.

It is a happy number.

79979116 is an admirable number.

It is a super-2 number, since 2×79979116² = 12793317992282912, which contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 79979116.

It is not an unprimeable number, because it can be changed into a prime (79979117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428171 + ... + 1428226.

Almost surely, 2^79979116 is an apocalyptic number.

It is an amenable number.

79979116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

79979116 is a wasteful number, since it uses less digits than its factorization.

79979116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856408 (or 2856406 counting only the distinct ones).

The product of its digits is 214326, while the sum is 49.

The square root of 79979116 is about 8943.1043827074. The cubic root of 79979116 is about 430.8494403982.

The spelling of 79979116 in words is "seventy-nine million, nine hundred seventy-nine thousand, one hundred sixteen".