172924 has 12 divisors (see below), whose sum is σ = 320544. Its totient is φ = 81344.

The previous prime is 172883. The next prime is 172933. The reversal of 172924 is 429271.

It is a congruent number.

It is an unprimeable number.

172924 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204 + ... + 1339.

It is an arithmetic number, because the mean of its divisors is an integer number (26712).

2¹⁷²⁹²⁴ is an apocalyptic number.

It is an amenable number.

172924 is a deficient number, since it is larger than the sum of its proper divisors (147620).

172924 is a wasteful number, since it uses less digits than its factorization.

172924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 2562 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 172924 is about 415.8413158886. The cubic root of 172924 is about 55.7123858968.

The spelling of 172924 in words is "one hundred seventy-two thousand, nine hundred twenty-four".