389792057 has 4 divisors (see below), whose sum is σ = 389853156. Its totient is φ = 389730960.

The previous prime is 389792021. The next prime is 389792069. The reversal of 389792057 is 750297983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 317694976 + 72097081 = 17824^2 + 8491^2 .

It is a cyclic number.

It is not a de Polignac number, because 389792057 - 2⁶ = 389791993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389791996 and 389792014.

It is not an unprimeable number, because it can be changed into a prime (389791057) 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, 19694 + ... + 34167.

It is an arithmetic number, because the mean of its divisors is an integer number (97463289).

Almost surely, 2^389792057 is an apocalyptic number.

It is an amenable number.

389792057 is a deficient number, since it is larger than the sum of its proper divisors (61099).

389792057 is an equidigital number, since it uses as much as digits as its factorization.

389792057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61098.

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 389792057 is about 19743.1521546079. The cubic root of 389792057 is about 730.4844829182.

The spelling of 389792057 in words is "three hundred eighty-nine million, seven hundred ninety-two thousand, fifty-seven".