393882117 has 4 divisors (see below), whose sum is σ = 525176160. Its totient is φ = 262588076.

The previous prime is 393882113. The next prime is 393882149. The reversal of 393882117 is 711288393.

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 393882117 - 2² = 393882113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393882113) 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, 65647017 + ... + 65647022.

It is an arithmetic number, because the mean of its divisors is an integer number (131294040).

Almost surely, 2^393882117 is an apocalyptic number.

It is an amenable number.

393882117 is a deficient number, since it is larger than the sum of its proper divisors (131294043).

393882117 is a wasteful number, since it uses less digits than its factorization.

393882117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131294042.

The product of its digits is 72576, while the sum is 42.

The square root of 393882117 is about 19846.4635892645. The cubic root of 393882117 is about 733.0305719670.

The spelling of 393882117 in words is "three hundred ninety-three million, eight hundred eighty-two thousand, one hundred seventeen".