79127136 has 72 divisors (see below), whose sum is σ = 245483784. Its totient is φ = 23976960.

The previous prime is 79127117. The next prime is 79127143. The reversal of 79127136 is 63172197.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×79127136² = 12522207303124992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 79127136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9321 + ... + 15656.

It is an arithmetic number, because the mean of its divisors is an integer number (3409497).

Almost surely, 2^79127136 is an apocalyptic number.

It is an amenable number.

79127136 is an abundant number, since it is smaller than the sum of its proper divisors (166356648).

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

79127136 is a wasteful number, since it uses less digits than its factorization.

79127136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25004 (or 24993 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 79127136 is about 8895.3435009560. The cubic root of 79127136 is about 429.3140966738.

The spelling of 79127136 in words is "seventy-nine million, one hundred twenty-seven thousand, one hundred thirty-six".