389323077 has 16 divisors (see below), whose sum is σ = 609849408. Its totient is φ = 217802880.

The previous prime is 389323073. The next prime is 389323087. The reversal of 389323077 is 770323983.

It is not a de Polignac number, because 389323077 - 2² = 389323073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389323073) 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, 453328 + ... + 454185.

It is an arithmetic number, because the mean of its divisors is an integer number (38115588).

Almost surely, 2^389323077 is an apocalyptic number.

It is an amenable number.

389323077 is a deficient number, since it is larger than the sum of its proper divisors (220526331).

389323077 is a wasteful number, since it uses less digits than its factorization.

389323077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907540.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 389323077 is about 19731.2715505109. The cubic root of 389323077 is about 730.1914034914.

The spelling of 389323077 in words is "three hundred eighty-nine million, three hundred twenty-three thousand, seventy-seven".