566669 has 4 divisors (see below), whose sum is σ = 569280. Its totient is φ = 564060.

The previous prime is 566659. The next prime is 566677. The reversal of 566669 is 966665.

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 566669 - 2⁴ = 566653 is a prime.

It is a super-2 number, since 2×566669² = 642227511122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566639) 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, 947 + ... + 1424.

It is an arithmetic number, because the mean of its divisors is an integer number (142320).

2⁵⁶⁶⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

566669 is a deficient number, since it is larger than the sum of its proper divisors (2611).

566669 is a wasteful number, since it uses less digits than its factorization.

566669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610.

The product of its digits is 58320, while the sum is 38.

The square root of 566669 is about 752.7742025335. The cubic root of 566669 is about 82.7516162674.

The spelling of 566669 in words is "five hundred sixty-six thousand, six hundred sixty-nine".