79871898 has 32 divisors (see below), whose sum is σ = 164108736. Its totient is φ = 25901568.

The previous prime is 79871881. The next prime is 79871917. The reversal of 79871898 is 89817897.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90636 + ... + 91512.

It is an arithmetic number, because the mean of its divisors is an integer number (5128398).

Almost surely, 2^79871898 is an apocalyptic number.

79871898 is an abundant number, since it is smaller than the sum of its proper divisors (84236838).

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

79871898 is a wasteful number, since it uses less digits than its factorization.

79871898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278.

The product of its digits is 2032128, while the sum is 57.

The square root of 79871898 is about 8937.1079214699. The cubic root of 79871898 is about 430.6568256444.

The spelling of 79871898 in words is "seventy-nine million, eight hundred seventy-one thousand, eight hundred ninety-eight".