389315519 has 2 divisors, whose sum is σ = 389315520. Its totient is φ = 389315518.

The previous prime is 389315501. The next prime is 389315533. The reversal of 389315519 is 915513983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389315519 - 2²⁸ = 120880063 is a prime.

It is a super-2 number, since 2×389315519² = 303133146668478722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 389315519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389315219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194657759 + 194657760.

It is an arithmetic number, because the mean of its divisors is an integer number (194657760).

Almost surely, 2^389315519 is an apocalyptic number.

389315519 is a deficient number, since it is larger than the sum of its proper divisors (1).

389315519 is an equidigital number, since it uses as much as digits as its factorization.

389315519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 44.

The square root of 389315519 is about 19731.0800261922. The cubic root of 389315519 is about 730.1866783478.

The spelling of 389315519 in words is "three hundred eighty-nine million, three hundred fifteen thousand, five hundred nineteen".