393252173 has 4 divisors (see below), whose sum is σ = 398791008. Its totient is φ = 387713340.

The previous prime is 393252133. The next prime is 393252193. The reversal of 393252173 is 371252393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 393252173 - 2²⁸ = 124816717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393252113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2769311 + ... + 2769452.

It is an arithmetic number, because the mean of its divisors is an integer number (99697752).

Almost surely, 2^393252173 is an apocalyptic number.

It is an amenable number.

393252173 is a deficient number, since it is larger than the sum of its proper divisors (5538835).

393252173 is an equidigital number, since it uses as much as digits as its factorization.

393252173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5538834.

The product of its digits is 34020, while the sum is 35.

The square root of 393252173 is about 19830.5868042275. The cubic root of 393252173 is about 732.6395796865.

The spelling of 393252173 in words is "three hundred ninety-three million, two hundred fifty-two thousand, one hundred seventy-three".