63172972 has 6 divisors (see below), whose sum is σ = 110552708. Its totient is φ = 31586484.

The previous prime is 63172957. The next prime is 63172981. The reversal of 63172972 is 27927136.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7896618 + ... + 7896625.

Almost surely, 2^63172972 is an apocalyptic number.

It is an amenable number.

63172972 is a deficient number, since it is larger than the sum of its proper divisors (47379736).

63172972 is a wasteful number, since it uses less digits than its factorization.

63172972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15793247 (or 15793245 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The square root of 63172972 is about 7948.1426761225. The cubic root of 63172972 is about 398.2695496493.

The spelling of 63172972 in words is "sixty-three million, one hundred seventy-two thousand, nine hundred seventy-two".