172672012 has 6 divisors (see below), whose sum is σ = 302176028. Its totient is φ = 86336004.

The previous prime is 172672001. The next prime is 172672051. The reversal of 172672012 is 210276271.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21583998 + ... + 21584005.

Almost surely, 2^172672012 is an apocalyptic number.

It is an amenable number.

172672012 is a deficient number, since it is larger than the sum of its proper divisors (129504016).

172672012 is a wasteful number, since it uses less digits than its factorization.

172672012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43168007 (or 43168005 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 172672012 is about 13140.4722898380. The cubic root of 172672012 is about 556.8531104035.

The spelling of 172672012 in words is "one hundred seventy-two million, six hundred seventy-two thousand, twelve".