389565 has 24 divisors (see below), whose sum is σ = 737568. Its totient is φ = 188640.

The previous prime is 389563. The next prime is 389567. The reversal of 389565 is 565983.

It is an interprime number because it is at equal distance from previous prime (389563) and next prime (389567).

It is not a de Polignac number, because 389565 - 2¹ = 389563 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389561) 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 in 23 ways as a sum of consecutive naturals, for example, 102 + ... + 888.

It is an arithmetic number, because the mean of its divisors is an integer number (30732).

2³⁸⁹⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

389565 is a deficient number, since it is larger than the sum of its proper divisors (348003).

389565 is a wasteful number, since it uses less digits than its factorization.

389565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 806 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 389565 is about 624.1514239349. The cubic root of 389565 is about 73.0342617678.

The spelling of 389565 in words is "three hundred eighty-nine thousand, five hundred sixty-five".