564887 has 4 divisors (see below), whose sum is σ = 570000. Its totient is φ = 559776.

The previous prime is 564881. The next prime is 564899. The reversal of 564887 is 788465.

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

It is a cyclic number.

It is not a de Polignac number, because 564887 - 2⁴ = 564871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564887.

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 564887.

It is not an unprimeable number, because it can be changed into a prime (564881) 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 3 ways as a sum of consecutive naturals, for example, 2387 + ... + 2612.

It is an arithmetic number, because the mean of its divisors is an integer number (142500).

2⁵⁶⁴⁸⁸⁷ is an apocalyptic number.

564887 is a deficient number, since it is larger than the sum of its proper divisors (5113).

564887 is a wasteful number, since it uses less digits than its factorization.

564887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112.

The product of its digits is 53760, while the sum is 38.

The square root of 564887 is about 751.5896486781. The cubic root of 564887 is about 82.6647823741.

The spelling of 564887 in words is "five hundred sixty-four thousand, eight hundred eighty-seven".