389648539 has 6 divisors (see below), whose sum is σ = 453264684. Its totient is φ = 333984420.

The previous prime is 389648509. The next prime is 389648587. The reversal of 389648539 is 935846983.

It is not a de Polignac number, because 389648539 - 2⁵ = 389648507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389648539.

It is not an unprimeable number, because it can be changed into a prime (389648509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3975957 + ... + 3976054.

It is an arithmetic number, because the mean of its divisors is an integer number (75544114).

Almost surely, 2^389648539 is an apocalyptic number.

389648539 is a deficient number, since it is larger than the sum of its proper divisors (63616145).

389648539 is an equidigital number, since it uses as much as digits as its factorization.

389648539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952025 (or 7952018 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 55.

The square root of 389648539 is about 19739.5171926772. The cubic root of 389648539 is about 730.3948192634.

The spelling of 389648539 in words is "three hundred eighty-nine million, six hundred forty-eight thousand, five hundred thirty-nine".