389738855 has 16 divisors (see below), whose sum is σ = 540216864. Its totient is φ = 266772480.

The previous prime is 389738819. The next prime is 389738863. The reversal of 389738855 is 558837983.

It is not a de Polignac number, because 389738855 - 2²⁴ = 372961639 is a prime.

It is a super-2 number, since 2×389738855² = 303792750193422050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 389738855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207482 + ... + 209351.

It is an arithmetic number, because the mean of its divisors is an integer number (33763554).

Almost surely, 2^389738855 is an apocalyptic number.

389738855 is a deficient number, since it is larger than the sum of its proper divisors (150478009).

389738855 is a wasteful number, since it uses less digits than its factorization.

389738855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416866.

The product of its digits is 7257600, while the sum is 56.

The square root of 389738855 is about 19741.8047553915. The cubic root of 389738855 is about 730.4512472455.

The spelling of 389738855 in words is "three hundred eighty-nine million, seven hundred thirty-eight thousand, eight hundred fifty-five".