172772 has 12 divisors (see below), whose sum is σ = 309120. Its totient is φ = 84456.

The previous prime is 172759. The next prime is 172787. The reversal of 172772 is 277271.

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, 272 + ... + 647.

It is an arithmetic number, because the mean of its divisors is an integer number (25760).

2¹⁷²⁷⁷² is an apocalyptic number.

It is an amenable number.

172772 is a deficient number, since it is larger than the sum of its proper divisors (136348).

172772 is a wasteful number, since it uses less digits than its factorization.

172772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 968 counting only the distinct ones).

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

The square root of 172772 is about 415.6585136864. The cubic root of 172772 is about 55.6960574036.

The spelling of 172772 in words is "one hundred seventy-two thousand, seven hundred seventy-two", and thus it is an iban number.