79999916 has 12 divisors (see below), whose sum is σ = 140076888. Its totient is φ = 39977952.

The previous prime is 79999879. The next prime is 79999973. The reversal of 79999916 is 61999997.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4835 + ... + 13541.

It is an arithmetic number, because the mean of its divisors is an integer number (11673074).

Almost surely, 2^79999916 is an apocalyptic number.

It is an amenable number.

79999916 is a deficient number, since it is larger than the sum of its proper divisors (60076972).

79999916 is a wasteful number, since it uses less digits than its factorization.

79999916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11008 (or 11006 counting only the distinct ones).

The product of its digits is 2480058, while the sum is 59.

The square root of 79999916 is about 8944.2672142552. The cubic root of 79999916 is about 430.8867871959.

It can be divided in two parts, 7999991 and 6, that added together give a palindrome (7999997).

The spelling of 79999916 in words is "seventy-nine million, nine hundred ninety-nine thousand, nine hundred sixteen".