172487372 has 12 divisors (see below), whose sum is σ = 319609080. Its totient is φ = 81170496.

The previous prime is 172487353. The next prime is 172487383. The reversal of 172487372 is 273784271.

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, 1268222 + ... + 1268357.

It is an arithmetic number, because the mean of its divisors is an integer number (26634090).

Almost surely, 2^172487372 is an apocalyptic number.

It is an amenable number.

172487372 is a deficient number, since it is larger than the sum of its proper divisors (147121708).

172487372 is a wasteful number, since it uses less digits than its factorization.

172487372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536600 (or 2536598 counting only the distinct ones).

The product of its digits is 131712, while the sum is 41.

The square root of 172487372 is about 13133.4447880212. Note that the first 3 decimals coincide. The cubic root of 172487372 is about 556.6545566507.

The spelling of 172487372 in words is "one hundred seventy-two million, four hundred eighty-seven thousand, three hundred seventy-two".