80792172 has 18 divisors (see below), whose sum is σ = 204224748. Its totient is φ = 26930712.

The previous prime is 80792167. The next prime is 80792183. The reversal of 80792172 is 27129708.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2244227 = 80792172 / (8 + 0 + 7 + 9 + 2 + 1 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1122078 + ... + 1122149.

Almost surely, 2^80792172 is an apocalyptic number.

It is an amenable number.

80792172 is an abundant number, since it is smaller than the sum of its proper divisors (123432576).

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

80792172 is a wasteful number, since it uses less digits than its factorization.

80792172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244237 (or 2244232 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 80792172 is about 8988.4465843660. The cubic root of 80792172 is about 432.3045049626.

The spelling of 80792172 in words is "eighty million, seven hundred ninety-two thousand, one hundred seventy-two".