79850172 has 24 divisors (see below), whose sum is σ = 192328192. Its totient is φ = 25758000.

The previous prime is 79850167. The next prime is 79850189. The reversal of 79850172 is 27105897.

It is a self number, because there is not a number n which added to its sum of digits gives 79850172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106954 + ... + 107697.

Almost surely, 2^79850172 is an apocalyptic number.

It is an amenable number.

79850172 is an abundant number, since it is smaller than the sum of its proper divisors (112478020).

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

79850172 is a wasteful number, since it uses less digits than its factorization.

79850172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214689 (or 214687 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 79850172 is about 8935.8923449200. The cubic root of 79850172 is about 430.6177743681.

The spelling of 79850172 in words is "seventy-nine million, eight hundred fifty thousand, one hundred seventy-two".