79618938 has 32 divisors (see below), whose sum is σ = 182286720. Its totient is φ = 22710720.

The previous prime is 79618927. The next prime is 79618961. The reversal of 79618938 is 83981697.

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, 33328 + ... + 35636.

It is an arithmetic number, because the mean of its divisors is an integer number (5696460).

Almost surely, 2^79618938 is an apocalyptic number.

79618938 is an abundant number, since it is smaller than the sum of its proper divisors (102667782).

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

79618938 is a wasteful number, since it uses less digits than its factorization.

79618938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142.

The product of its digits is 653184, while the sum is 51.

The square root of 79618938 is about 8922.9444691761. The cubic root of 79618938 is about 430.2017045403.

The spelling of 79618938 in words is "seventy-nine million, six hundred eighteen thousand, nine hundred thirty-eight".