566239 has 4 divisors (see below), whose sum is σ = 568656. Its totient is φ = 563824.

The previous prime is 566233. The next prime is 566273. The reversal of 566239 is 932665.

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 566239 - 2³ = 566231 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 566239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814 + ... + 1339.

It is an arithmetic number, because the mean of its divisors is an integer number (142164).

2⁵⁶⁶²³⁹ is an apocalyptic number.

566239 is a deficient number, since it is larger than the sum of its proper divisors (2417).

566239 is a wasteful number, since it uses less digits than its factorization.

566239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416.

The product of its digits is 9720, while the sum is 31.

The square root of 566239 is about 752.4885381187. The cubic root of 566239 is about 82.7306797659.

The spelling of 566239 in words is "five hundred sixty-six thousand, two hundred thirty-nine".