172372 has 6 divisors (see below), whose sum is σ = 301658. Its totient is φ = 86184.

The previous prime is 172357. The next prime is 172373. The reversal of 172372 is 273271.

172372 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in only one way, i.e., 133956 + 38416 = 366^2 + 196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21543 + ... + 21550.

2¹⁷²³⁷² is an apocalyptic number.

It is an amenable number.

172372 is a deficient number, since it is larger than the sum of its proper divisors (129286).

172372 is a wasteful number, since it uses less digits than its factorization.

172372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43097 (or 43095 counting only the distinct ones).

The product of its digits is 588, while the sum is 22.

The square root of 172372 is about 415.1770706578. The cubic root of 172372 is about 55.6530418725.

The spelling of 172372 in words is "one hundred seventy-two thousand, three hundred seventy-two", and thus it is an iban number.