385692565 has 4 divisors (see below), whose sum is σ = 462831084. Its totient is φ = 308554048.

The previous prime is 385692557. The next prime is 385692577. The reversal of 385692565 is 565296583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153983281 + 231709284 = 12409^2 + 15222^2 .

It is a cyclic number.

It is not a de Polignac number, because 385692565 - 2³ = 385692557 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38569252 + ... + 38569261.

It is an arithmetic number, because the mean of its divisors is an integer number (115707771).

Almost surely, 2^385692565 is an apocalyptic number.

It is an amenable number.

385692565 is a deficient number, since it is larger than the sum of its proper divisors (77138519).

385692565 is an equidigital number, since it uses as much as digits as its factorization.

385692565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77138518.

The product of its digits is 1944000, while the sum is 49.

The square root of 385692565 is about 19639.0571311354. The cubic root of 385692565 is about 727.9145867721.

The spelling of 385692565 in words is "three hundred eighty-five million, six hundred ninety-two thousand, five hundred sixty-five".