172329916 has 24 divisors (see below), whose sum is σ = 329970816. Its totient is φ = 78099120.

The previous prime is 172329907. The next prime is 172329947. The reversal of 172329916 is 619923271.

172329916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9625 + ... + 20911.

It is an arithmetic number, because the mean of its divisors is an integer number (13748784).

Almost surely, 2^172329916 is an apocalyptic number.

It is an amenable number.

172329916 is a deficient number, since it is larger than the sum of its proper divisors (157640900).

172329916 is a wasteful number, since it uses less digits than its factorization.

172329916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11649 (or 11647 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 172329916 is about 13127.4489524812. The cubic root of 172329916 is about 556.4851234094.

The spelling of 172329916 in words is "one hundred seventy-two million, three hundred twenty-nine thousand, nine hundred sixteen".