389085539 has 2 divisors, whose sum is σ = 389085540. Its totient is φ = 389085538.

The previous prime is 389085533. The next prime is 389085551. The reversal of 389085539 is 935580983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389085539 - 2⁸ = 389085283 is a prime.

It is not a weakly prime, because it can be changed into another prime (389085533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194542769 + 194542770.

It is an arithmetic number, because the mean of its divisors is an integer number (194542770).

Almost surely, 2^389085539 is an apocalyptic number.

389085539 is a deficient number, since it is larger than the sum of its proper divisors (1).

389085539 is an equidigital number, since it uses as much as digits as its factorization.

389085539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 389085539 is about 19725.2513038491. The cubic root of 389085539 is about 730.0428691907.

The spelling of 389085539 in words is "three hundred eighty-nine million, eighty-five thousand, five hundred thirty-nine".