566731 has 4 divisors (see below), whose sum is σ = 618264. Its totient is φ = 515200.

The previous prime is 566723. The next prime is 566737. The reversal of 566731 is 137665.

566731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 566731 - 2³ = 566723 is a prime.

It is a super-3 number, since 3×566731³ = 546074833330787673, which contains 333 as substring. Note that it is a super-d number also for d = 2.

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 566731.

It is not an unprimeable number, because it can be changed into a prime (566737) 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, 25750 + ... + 25771.

It is an arithmetic number, because the mean of its divisors is an integer number (154566).

2⁵⁶⁶⁷³¹ is an apocalyptic number.

566731 is a deficient number, since it is larger than the sum of its proper divisors (51533).

566731 is a wasteful number, since it uses less digits than its factorization.

566731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51532.

The product of its digits is 3780, while the sum is 28.

The square root of 566731 is about 752.8153824146. The cubic root of 566731 is about 82.7546341451.

The spelling of 566731 in words is "five hundred sixty-six thousand, seven hundred thirty-one".