566863 has 8 divisors (see below), whose sum is σ = 640080. Its totient is φ = 497280.

The previous prime is 566857. The next prime is 566879. The reversal of 566863 is 368665.

566863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (80010).

2⁵⁶⁶⁸⁶³ is an apocalyptic number.

566863 is a deficient number, since it is larger than the sum of its proper divisors (73217).

566863 is a wasteful number, since it uses less digits than its factorization.

566863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817.

The product of its digits is 25920, while the sum is 34.

The square root of 566863 is about 752.9030482074. The cubic root of 566863 is about 82.7610585708.

The spelling of 566863 in words is "five hundred sixty-six thousand, eight hundred sixty-three".