392123389 has 16 divisors (see below), whose sum is σ = 469677312. Its totient is φ = 320082048.

The previous prime is 392123359. The next prime is 392123393. The reversal of 392123389 is 983321293.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 392123389 - 2⁷ = 392123261 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 (392123339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32287 + ... + 42739.

It is an arithmetic number, because the mean of its divisors is an integer number (29354832).

Almost surely, 2^392123389 is an apocalyptic number.

It is an amenable number.

392123389 is a deficient number, since it is larger than the sum of its proper divisors (77553923).

392123389 is a wasteful number, since it uses less digits than its factorization.

392123389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10716.

The product of its digits is 69984, while the sum is 40.

The square root of 392123389 is about 19802.1056708624. The cubic root of 392123389 is about 731.9379227369.

The spelling of 392123389 in words is "three hundred ninety-two million, one hundred twenty-three thousand, three hundred eighty-nine".