79442475 has 36 divisors (see below), whose sum is σ = 152796024. Its totient is φ = 36314880.

The previous prime is 79442443. The next prime is 79442501. The reversal of 79442475 is 57424497.

It is not a de Polignac number, because 79442475 - 2⁵ = 79442443 is a prime.

It is a super-2 number, since 2×79442475² = 12622213668251250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7134 + ... + 14483.

It is an arithmetic number, because the mean of its divisors is an integer number (4244334).

Almost surely, 2^79442475 is an apocalyptic number.

79442475 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

79442475 is a deficient number, since it is larger than the sum of its proper divisors (73353549).

79442475 is a wasteful number, since it uses less digits than its factorization.

79442475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21644 (or 21632 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 79442475 is about 8913.0508244933. The cubic root of 79442475 is about 429.8836443785.

The spelling of 79442475 in words is "seventy-nine million, four hundred forty-two thousand, four hundred seventy-five".