79711892 has 18 divisors (see below), whose sum is σ = 151052958. Its totient is φ = 36789792.

The previous prime is 79711873. The next prime is 79711901. The reversal of 79711892 is 29811797.

It can be written as a sum of positive squares in 3 ways, for example, as 38416 + 79673476 = 196^2 + 8926^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58283 + ... + 59634.

It is an arithmetic number, because the mean of its divisors is an integer number (8391831).

Almost surely, 2^79711892 is an apocalyptic number.

It is an amenable number.

79711892 is a deficient number, since it is larger than the sum of its proper divisors (71341066).

79711892 is a wasteful number, since it uses less digits than its factorization.

79711892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117947 (or 117932 counting only the distinct ones).

The product of its digits is 63504, while the sum is 44.

The square root of 79711892 is about 8928.1516564180. The cubic root of 79711892 is about 430.3690575937.

The spelling of 79711892 in words is "seventy-nine million, seven hundred eleven thousand, eight hundred ninety-two".