385589 has 2 divisors, whose sum is σ = 385590. Its totient is φ = 385588.

The previous prime is 385579. The next prime is 385591. The reversal of 385589 is 985583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380689 + 4900 = 617^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 385589 - 2⁴ = 385573 is a prime.

It is a Sophie Germain prime.

Together with 385591, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

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 385589.

It is not a weakly prime, because it can be changed into another prime (385519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192794 + 192795.

It is an arithmetic number, because the mean of its divisors is an integer number (192795).

2³⁸⁵⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

385589 is a deficient number, since it is larger than the sum of its proper divisors (1).

385589 is an equidigital number, since it uses as much as digits as its factorization.

385589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The square root of 385589 is about 620.9581306336. The cubic root of 385589 is about 72.7849428466.

The spelling of 385589 in words is "three hundred eighty-five thousand, five hundred eighty-nine".