79111313 has 6 divisors (see below), whose sum is σ = 79897554. Its totient is φ = 78332736.

The previous prime is 79111303. The next prime is 79111339. The reversal of 79111313 is 31311197.

It can be written as a sum of positive squares in only one way, i.e., 61277584 + 17833729 = 7828^2 + 4223^2 .

It is not a de Polignac number, because 79111313 - 2²⁶ = 12002449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79111303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6881 + ... + 14337.

It is an arithmetic number, because the mean of its divisors is an integer number (13316259).

Almost surely, 2^79111313 is an apocalyptic number.

It is an amenable number.

79111313 is a deficient number, since it is larger than the sum of its proper divisors (786241).

79111313 is an equidigital number, since it uses as much as digits as its factorization.

79111313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7663 (or 7560 counting only the distinct ones).

The product of its digits is 567, while the sum is 26.

The square root of 79111313 is about 8894.4540585693. The cubic root of 79111313 is about 429.2854782160.

The spelling of 79111313 in words is "seventy-nine million, one hundred eleven thousand, three hundred thirteen".