79442858 has 16 divisors (see below), whose sum is σ = 130588416. Its totient is φ = 35946240.

The previous prime is 79442833. The next prime is 79442879. The reversal of 79442858 is 85824497.

It is a happy number.

It is a super-2 number, since 2×79442858² = 12622335374416328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3191 + ... + 13002.

It is an arithmetic number, because the mean of its divisors is an integer number (8161776).

Almost surely, 2^79442858 is an apocalyptic number.

79442858 is a deficient number, since it is larger than the sum of its proper divisors (51145558).

79442858 is a wasteful number, since it uses less digits than its factorization.

79442858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16429.

The product of its digits is 645120, while the sum is 47.

The square root of 79442858 is about 8913.0723098155. The cubic root of 79442858 is about 429.8843352145.

The spelling of 79442858 in words is "seventy-nine million, four hundred forty-two thousand, eight hundred fifty-eight".