79313863 has 16 divisors (see below), whose sum is σ = 83427840. Its totient is φ = 75341376.

The previous prime is 79313849. The next prime is 79313873. The reversal of 79313863 is 36831397.

It is not a de Polignac number, because 79313863 - 2⁵ = 79313831 is a prime.

It is a Duffinian number.

Its product of digits (81648) is a multiple of the sum of its prime divisors (486).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79313813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280120 + ... + 280402.

It is an arithmetic number, because the mean of its divisors is an integer number (5214240).

Almost surely, 2^79313863 is an apocalyptic number.

79313863 is a deficient number, since it is larger than the sum of its proper divisors (4113977).

79313863 is a wasteful number, since it uses less digits than its factorization.

79313863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its digits is 81648, while the sum is 40.

The square root of 79313863 is about 8905.8330884876. The cubic root of 79313863 is about 429.6515348842.

The spelling of 79313863 in words is "seventy-nine million, three hundred thirteen thousand, eight hundred sixty-three".