79013979 has 12 divisors (see below), whose sum is σ = 124507032. Its totient is φ = 47887200.

The previous prime is 79013953. The next prime is 79014037. The reversal of 79013979 is 97931097.

It is not a de Polignac number, because 79013979 - 2¹² = 79009883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79012979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398962 + ... + 399159.

It is an arithmetic number, because the mean of its divisors is an integer number (10375586).

Almost surely, 2^79013979 is an apocalyptic number.

79013979 is a deficient number, since it is larger than the sum of its proper divisors (45493053).

79013979 is a wasteful number, since it uses less digits than its factorization.

79013979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798138 (or 798135 counting only the distinct ones).

The product of its (nonzero) digits is 107163, while the sum is 45.

The square root of 79013979 is about 8888.9807627196. The cubic root of 79013979 is about 429.1093499266.

The spelling of 79013979 in words is "seventy-nine million, thirteen thousand, nine hundred seventy-nine".