389577838 has 16 divisors (see below), whose sum is σ = 631569456. Its totient is φ = 179161920.

The previous prime is 389577833. The next prime is 389577863. The reversal of 389577838 is 838775983.

It is a super-3 number, since 3×389577838³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389577833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19356 + ... + 33967.

It is an arithmetic number, because the mean of its divisors is an integer number (39473091).

Almost surely, 2^389577838 is an apocalyptic number.

389577838 is a deficient number, since it is larger than the sum of its proper divisors (241991618).

389577838 is a wasteful number, since it uses less digits than its factorization.

389577838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53619.

The product of its digits is 10160640, while the sum is 58.

The square root of 389577838 is about 19737.7262621610. The cubic root of 389577838 is about 730.3506403324.

The spelling of 389577838 in words is "three hundred eighty-nine million, five hundred seventy-seven thousand, eight hundred thirty-eight".