389838757 has 12 divisors (see below), whose sum is σ = 494712576. Its totient is φ = 303770040.

The previous prime is 389838737. The next prime is 389838773. The reversal of 389838757 is 757838983.

It is not a de Polignac number, because 389838757 - 2²³ = 381450149 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 (389838737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361093 + ... + 362170.

It is an arithmetic number, because the mean of its divisors is an integer number (41226048).

Almost surely, 2^389838757 is an apocalyptic number.

It is an amenable number.

389838757 is a deficient number, since it is larger than the sum of its proper divisors (104873819).

389838757 is a wasteful number, since it uses less digits than its factorization.

389838757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723288 (or 723281 counting only the distinct ones).

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

The square root of 389838757 is about 19744.3348077366. The cubic root of 389838757 is about 730.5136542524.

The spelling of 389838757 in words is "three hundred eighty-nine million, eight hundred thirty-eight thousand, seven hundred fifty-seven".