79312536 has 48 divisors (see below), whose sum is σ = 226114200. Its totient is φ = 25045632.

The previous prime is 79312507. The next prime is 79312543. The reversal of 79312536 is 63521397.

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 79312536.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 27621 + ... + 30356.

Almost surely, 2^79312536 is an apocalyptic number.

79312536 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

79312536 is an abundant number, since it is smaller than the sum of its proper divisors (146801664).

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

79312536 is a wasteful number, since it uses less digits than its factorization.

79312536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58008 (or 58001 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 79312536 is about 8905.7585864428. The cubic root of 79312536 is about 429.6491387047.

The spelling of 79312536 in words is "seventy-nine million, three hundred twelve thousand, five hundred thirty-six".