80868172 has 36 divisors (see below), whose sum is σ = 177783760. Its totient is φ = 31505760.

The previous prime is 80868163. The next prime is 80868187. The reversal of 80868172 is 27186808.

It is a super-2 number, since 2×80868172² = 13079322485243168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8547 + ... + 15322.

Almost surely, 2^80868172 is an apocalyptic number.

It is an amenable number.

80868172 is an abundant number, since it is smaller than the sum of its proper divisors (96915588).

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

80868172 is a wasteful number, since it uses less digits than its factorization.

80868172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23902 (or 23889 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 80868172 is about 8992.6732399215. The cubic root of 80868172 is about 432.4400166292.

The spelling of 80868172 in words is "eighty million, eight hundred sixty-eight thousand, one hundred seventy-two".