390086565 has 16 divisors (see below), whose sum is σ = 680878656. Its totient is φ = 189132800.

The previous prime is 390086563. The next prime is 390086591. The reversal of 390086565 is 565680093.

It is not a de Polignac number, because 390086565 - 2¹ = 390086563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390086563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1181916 + ... + 1182245.

It is an arithmetic number, because the mean of its divisors is an integer number (42554916).

Almost surely, 2^390086565 is an apocalyptic number.

It is an amenable number.

390086565 is a deficient number, since it is larger than the sum of its proper divisors (290792091).

390086565 is a wasteful number, since it uses less digits than its factorization.

390086565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364180.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 390086565 is about 19750.6092311098. The cubic root of 390086565 is about 730.6684095029.

The spelling of 390086565 in words is "three hundred ninety million, eighty-six thousand, five hundred sixty-five".