389053917 has 24 divisors (see below), whose sum is σ = 643458816. Its totient is φ = 221897376.

The previous prime is 389053909. The next prime is 389053933. The reversal of 389053917 is 719350983.

It is a happy number.

It is not a de Polignac number, because 389053917 - 2³ = 389053909 is a prime.

It is a super-3 number, since 3×389053917³ (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 (389053957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29548 + ... + 40634.

It is an arithmetic number, because the mean of its divisors is an integer number (26810784).

Almost surely, 2^389053917 is an apocalyptic number.

It is an amenable number.

389053917 is a deficient number, since it is larger than the sum of its proper divisors (254404899).

389053917 is a wasteful number, since it uses less digits than its factorization.

389053917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11657 (or 11654 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 389053917 is about 19724.4497261647. The cubic root of 389053917 is about 730.0230911567.

The spelling of 389053917 in words is "three hundred eighty-nine million, fifty-three thousand, nine hundred seventeen".