389618677 has 16 divisors (see below), whose sum is σ = 453157632. Its totient is φ = 328083840.

The previous prime is 389618641. The next prime is 389618707. The reversal of 389618677 is 776816983.

It is a de Polignac number, because none of the positive numbers 2^k-389618677 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 (389618077) 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, 156313 + ... + 158785.

It is an arithmetic number, because the mean of its divisors is an integer number (28322352).

Almost surely, 2^389618677 is an apocalyptic number.

It is an amenable number.

389618677 is a deficient number, since it is larger than the sum of its proper divisors (63538955).

389618677 is a wasteful number, since it uses less digits than its factorization.

389618677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868.

The product of its digits is 3048192, while the sum is 55.

The square root of 389618677 is about 19738.7607767053. The cubic root of 389618677 is about 730.3761600486.

The spelling of 389618677 in words is "three hundred eighty-nine million, six hundred eighteen thousand, six hundred seventy-seven".