79871956 has 12 divisors (see below), whose sum is σ = 140634592. Its totient is φ = 39690648.

The previous prime is 79871929. The next prime is 79872019. The reversal of 79871956 is 65917897.

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 3 ways as a sum of consecutive naturals, for example, 60600 + ... + 61903.

Almost surely, 2^79871956 is an apocalyptic number.

It is an amenable number.

79871956 is a deficient number, since it is larger than the sum of its proper divisors (60762636).

79871956 is a wasteful number, since it uses less digits than its factorization.

79871956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122670 (or 122668 counting only the distinct ones).

The product of its digits is 952560, while the sum is 52.

The square root of 79871956 is about 8937.1111663669. Note that the first 4 decimals coincide. The cubic root of 79871956 is about 430.6569298867.

The spelling of 79871956 in words is "seventy-nine million, eight hundred seventy-one thousand, nine hundred fifty-six".