389591 has 2 divisors, whose sum is σ = 389592. Its totient is φ = 389590.

The previous prime is 389579. The next prime is 389621. The reversal of 389591 is 195983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389591 - 2⁶ = 389527 is a prime.

It is a super-2 number, since 2×389591² = 303562294562, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389591.

It is not a weakly prime, because it can be changed into another prime (389531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194795 + 194796.

It is an arithmetic number, because the mean of its divisors is an integer number (194796).

2³⁸⁹⁵⁹¹ is an apocalyptic number.

389591 is a deficient number, since it is larger than the sum of its proper divisors (1).

389591 is an equidigital number, since it uses as much as digits as its factorization.

389591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 35.

The square root of 389591 is about 624.1722518664. The cubic root of 389591 is about 73.0358865276.

The spelling of 389591 in words is "three hundred eighty-nine thousand, five hundred ninety-one".