385565 has 8 divisors (see below), whose sum is σ = 470880. Its totient is φ = 302992.

The previous prime is 385559. The next prime is 385571. The reversal of 385565 is 565583.

It is an interprime number because it is at equal distance from previous prime (385559) and next prime (385571).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 385565 - 2⁶ = 385501 is a 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 385565.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359 + ... + 948.

It is an arithmetic number, because the mean of its divisors is an integer number (58860).

2³⁸⁵⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

385565 is a deficient number, since it is larger than the sum of its proper divisors (85315).

385565 is a wasteful number, since it uses less digits than its factorization.

385565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its digits is 18000, while the sum is 32.

The square root of 385565 is about 620.9388053585. The cubic root of 385565 is about 72.7834327111.

The spelling of 385565 in words is "three hundred eighty-five thousand, five hundred sixty-five".