79312086 has 36 divisors (see below), whose sum is σ = 199901052. Its totient is φ = 22660344.

The previous prime is 79312067. The next prime is 79312087. The reversal of 79312086 is 68021397.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79312086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79312087) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44080 + ... + 45843.

It is an arithmetic number, because the mean of its divisors is an integer number (5552807).

Almost surely, 2^79312086 is an apocalyptic number.

79312086 is an abundant number, since it is smaller than the sum of its proper divisors (120588966).

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

79312086 is a wasteful number, since it uses less digits than its factorization.

79312086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89945 (or 89935 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 79312086 is about 8905.7333218551. The cubic root of 79312086 is about 429.6483261283.

The spelling of 79312086 in words is "seventy-nine million, three hundred twelve thousand, eighty-six".