79307136 has 96 divisors (see below), whose sum is σ = 233667720. Its totient is φ = 25804800.

The previous prime is 79307117. The next prime is 79307143. The reversal of 79307136 is 63170397.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 79307136.

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, 48736 + ... + 50336.

Almost surely, 2^79307136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79307136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116833860).

79307136 is an abundant number, since it is smaller than the sum of its proper divisors (154360584).

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

79307136 is a wasteful number, since it uses less digits than its factorization.

79307136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 36.

The square root of 79307136 is about 8905.4554066594. The cubic root of 79307136 is about 429.6393875854.

The spelling of 79307136 in words is "seventy-nine million, three hundred seven thousand, one hundred thirty-six".