79890874 has 40 divisors (see below), whose sum is σ = 141977088. Its totient is φ = 33710040.

The previous prime is 79890859. The next prime is 79890901. The reversal of 79890874 is 47809897.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 609789 + ... + 609919.

Almost surely, 2^79890874 is an apocalyptic number.

79890874 is a deficient number, since it is larger than the sum of its proper divisors (62086214).

79890874 is a wasteful number, since it uses less digits than its factorization.

79890874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 79890874 is about 8938.1694993998. The cubic root of 79890874 is about 430.6909281553.

The spelling of 79890874 in words is "seventy-nine million, eight hundred ninety thousand, eight hundred seventy-four".