79435865 has 16 divisors (see below), whose sum is σ = 101761920. Its totient is φ = 59351040.

The previous prime is 79435861. The next prime is 79435871. The reversal of 79435865 is 56853497.

It is not a de Polignac number, because 79435865 - 2² = 79435861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79435861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857 + ... + 12633.

It is an arithmetic number, because the mean of its divisors is an integer number (6360120).

Almost surely, 2^79435865 is an apocalyptic number.

It is an amenable number.

79435865 is a deficient number, since it is larger than the sum of its proper divisors (22326055).

79435865 is a wasteful number, since it uses less digits than its factorization.

79435865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11872.

The product of its digits is 907200, while the sum is 47.

The square root of 79435865 is about 8912.6800122073. The cubic root of 79435865 is about 429.8717212450.

The spelling of 79435865 in words is "seventy-nine million, four hundred thirty-five thousand, eight hundred sixty-five".