566869 has 4 divisors (see below), whose sum is σ = 580096. Its totient is φ = 553644.

The previous prime is 566857. The next prime is 566879. The reversal of 566869 is 968665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 566869 - 2¹⁵ = 534101 is a prime.

It is a super-2 number, since 2×566869² = 642680926322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566879) 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, 6549 + ... + 6634.

It is an arithmetic number, because the mean of its divisors is an integer number (145024).

2⁵⁶⁶⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

566869 is a deficient number, since it is larger than the sum of its proper divisors (13227).

566869 is a wasteful number, since it uses less digits than its factorization.

566869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13226.

The product of its digits is 77760, while the sum is 40.

The square root of 566869 is about 752.9070327736. The cubic root of 566869 is about 82.7613505665.

The spelling of 566869 in words is "five hundred sixty-six thousand, eight hundred sixty-nine".