389385959 has 2 divisors, whose sum is σ = 389385960. Its totient is φ = 389385958.

The previous prime is 389385949. The next prime is 389385961. The reversal of 389385959 is 959583983.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389385959 is a prime.

Together with 389385961, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 389385898 and 389385907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389385949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194692979 + 194692980.

It is an arithmetic number, because the mean of its divisors is an integer number (194692980).

Almost surely, 2^389385959 is an apocalyptic number.

389385959 is a deficient number, since it is larger than the sum of its proper divisors (1).

389385959 is an equidigital number, since it uses as much as digits as its factorization.

389385959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10497600, while the sum is 59.

The square root of 389385959 is about 19732.8649465809. The cubic root of 389385959 is about 730.2307139653.

The spelling of 389385959 in words is "three hundred eighty-nine million, three hundred eighty-five thousand, nine hundred fifty-nine".