79964142 has 16 divisors (see below), whose sum is σ = 160600320. Its totient is φ = 26542712.

The previous prime is 79964119. The next prime is 79964149. The reversal of 79964142 is 24146997.

It is a junction number, because it is equal to n+sod(n) for n = 79964094 and 79964103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79964149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26448 + ... + 29315.

It is an arithmetic number, because the mean of its divisors is an integer number (10037520).

Almost surely, 2^79964142 is an apocalyptic number.

79964142 is an abundant number, since it is smaller than the sum of its proper divisors (80636178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79964142 is a wasteful number, since it uses less digits than its factorization.

79964142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56007.

The product of its digits is 108864, while the sum is 42.

The square root of 79964142 is about 8942.2671621910. The cubic root of 79964142 is about 430.8225502861.

The spelling of 79964142 in words is "seventy-nine million, nine hundred sixty-four thousand, one hundred forty-two".