393252172 has 6 divisors (see below), whose sum is σ = 688191308. Its totient is φ = 196626084.

The previous prime is 393252133. The next prime is 393252193. The reversal of 393252172 is 271252393.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49156518 + ... + 49156525.

Almost surely, 2^393252172 is an apocalyptic number.

It is an amenable number.

393252172 is a deficient number, since it is larger than the sum of its proper divisors (294939136).

393252172 is a wasteful number, since it uses less digits than its factorization.

393252172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98313047 (or 98313045 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 393252172 is about 19830.5867790139. The cubic root of 393252172 is about 732.6395790655.

The spelling of 393252172 in words is "three hundred ninety-three million, two hundred fifty-two thousand, one hundred seventy-two".