79647875 has 16 divisors (see below), whose sum is σ = 99672768. Its totient is φ = 63544000.

The previous prime is 79647863. The next prime is 79647877. The reversal of 79647875 is 57874697.

It is not a de Polignac number, because 79647875 - 2⁴ = 79647859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79647877) 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, 64514 + ... + 65736.

It is an arithmetic number, because the mean of its divisors is an integer number (6229548).

Almost surely, 2^79647875 is an apocalyptic number.

79647875 is a deficient number, since it is larger than the sum of its proper divisors (20024893).

79647875 is a wasteful number, since it uses less digits than its factorization.

79647875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1749 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 53.

The square root of 79647875 is about 8924.5658157694. The cubic root of 79647875 is about 430.2538162581.

The spelling of 79647875 in words is "seventy-nine million, six hundred forty-seven thousand, eight hundred seventy-five".