564665 has 8 divisors (see below), whose sum is σ = 699648. Its totient is φ = 437040.

The previous prime is 564653. The next prime is 564667. The reversal of 564665 is 566465.

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

It is not a de Polignac number, because 564665 - 2⁸ = 564409 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 564665.

It is not an unprimeable number, because it can be changed into a prime (564667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1667 + ... + 1976.

It is an arithmetic number, because the mean of its divisors is an integer number (87456).

2⁵⁶⁴⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

564665 is a deficient number, since it is larger than the sum of its proper divisors (134983).

564665 is a wasteful number, since it uses less digits than its factorization.

564665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679.

The product of its digits is 21600, while the sum is 32.

The square root of 564665 is about 751.4419471922. The cubic root of 564665 is about 82.6539518975.

The spelling of 564665 in words is "five hundred sixty-four thousand, six hundred sixty-five".