392133993 has 4 divisors (see below), whose sum is σ = 522845328. Its totient is φ = 261422660.

The previous prime is 392133979. The next prime is 392134003. The reversal of 392133993 is 399331293.

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 392133993 - 2⁴ = 392133977 is a prime.

It is a super-2 number, since 2×392133993² = 307538136932248098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (392133953) 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, 65355663 + ... + 65355668.

It is an arithmetic number, because the mean of its divisors is an integer number (130711332).

Almost surely, 2^392133993 is an apocalyptic number.

It is an amenable number.

392133993 is a deficient number, since it is larger than the sum of its proper divisors (130711335).

392133993 is a wasteful number, since it uses less digits than its factorization.

392133993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130711334.

The product of its digits is 118098, while the sum is 42.

The square root of 392133993 is about 19802.3734183557. The cubic root of 392133993 is about 731.9445204899.

The spelling of 392133993 in words is "three hundred ninety-two million, one hundred thirty-three thousand, nine hundred ninety-three".