79917902 has 8 divisors (see below), whose sum is σ = 119960136. Its totient is φ = 39931192.

The previous prime is 79917863. The next prime is 79917913. The reversal of 79917902 is 20971997.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 10073 + ... + 16164.

It is an arithmetic number, because the mean of its divisors is an integer number (14995017).

Almost surely, 2^79917902 is an apocalyptic number.

79917902 is a deficient number, since it is larger than the sum of its proper divisors (40042234).

79917902 is a wasteful number, since it uses less digits than its factorization.

79917902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27762.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 79917902 is about 8939.6813142304. The cubic root of 79917902 is about 430.7394919079.

The spelling of 79917902 in words is "seventy-nine million, nine hundred seventeen thousand, nine hundred two".