564863 has 4 divisors (see below), whose sum is σ = 608328. Its totient is φ = 521400.

The previous prime is 564827. The next prime is 564871. The reversal of 564863 is 368465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368465 = 5 ⋅73693.

It is a cyclic number.

It is not a de Polignac number, because 564863 - 2⁸ = 564607 is a prime.

It is a Duffinian number.

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 564863.

It is not an unprimeable number, because it can be changed into a prime (564163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21713 + ... + 21738.

It is an arithmetic number, because the mean of its divisors is an integer number (152082).

2⁵⁶⁴⁸⁶³ is an apocalyptic number.

564863 is a deficient number, since it is larger than the sum of its proper divisors (43465).

564863 is a wasteful number, since it uses less digits than its factorization.

564863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43464.

The product of its digits is 17280, while the sum is 32.

The square root of 564863 is about 751.5736823492. The cubic root of 564863 is about 82.6636116486.

The spelling of 564863 in words is "five hundred sixty-four thousand, eight hundred sixty-three".