566685 has 36 divisors (see below), whose sum is σ = 1147068. Its totient is φ = 258048.

The previous prime is 566681. The next prime is 566693. The reversal of 566685 is 586665.

566685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 423801 + 142884 = 651^2 + 378^2 .

It is not a de Polignac number, because 566685 - 2² = 566681 is a prime.

It is a super-2 number, since 2×566685² = 642263778450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566681) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2077 + ... + 2333.

It is an arithmetic number, because the mean of its divisors is an integer number (31863).

2⁵⁶⁶⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

566685 is an abundant number, since it is smaller than the sum of its proper divisors (580383).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

566685 is a wasteful number, since it uses less digits than its factorization.

566685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 272 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 566685 is about 752.7848298153. The cubic root of 566685 is about 82.7523950956.

The spelling of 566685 in words is "five hundred sixty-six thousand, six hundred eighty-five".