389039039 has 4 divisors (see below), whose sum is σ = 389080440. Its totient is φ = 388997640.

The previous prime is 389039023. The next prime is 389039059. The reversal of 389039039 is 930930983.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 930930983 = 2699 ⋅344917.

It is a cyclic number.

It is not a de Polignac number, because 389039039 - 2⁴ = 389039023 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 (389039009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929 + ... + 27909.

It is an arithmetic number, because the mean of its divisors is an integer number (97270110).

Almost surely, 2^389039039 is an apocalyptic number.

389039039 is a deficient number, since it is larger than the sum of its proper divisors (41401).

389039039 is a wasteful number, since it uses less digits than its factorization.

389039039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41400.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 389039039 is about 19724.0725764230. The cubic root of 389039039 is about 730.0137853155.

The spelling of 389039039 in words is "three hundred eighty-nine million, thirty-nine thousand, thirty-nine".