772000172 has 12 divisors (see below), whose sum is σ = 1422105720. Its totient is φ = 365684256.

The previous prime is 772000157. The next prime is 772000183. The reversal of 772000172 is 271000277.

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, 5078873 + ... + 5079024.

It is an arithmetic number, because the mean of its divisors is an integer number (118508810).

Almost surely, 2^772000172 is an apocalyptic number.

It is an amenable number.

772000172 is a deficient number, since it is larger than the sum of its proper divisors (650105548).

772000172 is a wasteful number, since it uses less digits than its factorization.

772000172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10157920 (or 10157918 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 772000172 is about 27784.8910741072. The cubic root of 772000172 is about 917.3585908128.

The spelling of 772000172 in words is "seven hundred seventy-two million, one hundred seventy-two", and thus it is an aban number.