172372966 has 4 divisors (see below), whose sum is σ = 258559452. Its totient is φ = 86186482.

The previous prime is 172372961. The next prime is 172372999. The reversal of 172372966 is 669273271.

172372966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172372961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43093240 + ... + 43093243.

It is an arithmetic number, because the mean of its divisors is an integer number (64639863).

Almost surely, 2^172372966 is an apocalyptic number.

172372966 is a deficient number, since it is larger than the sum of its proper divisors (86186486).

172372966 is an equidigital number, since it uses as much as digits as its factorization.

172372966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86186485.

The product of its digits is 190512, while the sum is 43.

The square root of 172372966 is about 13129.0885441450. The cubic root of 172372966 is about 556.5314583513.

The spelling of 172372966 in words is "one hundred seventy-two million, three hundred seventy-two thousand, nine hundred sixty-six".