566939 has 2 divisors, whose sum is σ = 566940. Its totient is φ = 566938.

The previous prime is 566911. The next prime is 566947. The reversal of 566939 is 939665.

566939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566939 is a prime.

It is not a weakly prime, because it can be changed into another prime (566999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283469 + 283470.

It is an arithmetic number, because the mean of its divisors is an integer number (283470).

2⁵⁶⁶⁹³⁹ is an apocalyptic number.

566939 is a deficient number, since it is larger than the sum of its proper divisors (1).

566939 is an equidigital number, since it uses as much as digits as its factorization.

566939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 38.

The square root of 566939 is about 752.9535178217. The cubic root of 566939 is about 82.7647570302.

The spelling of 566939 in words is "five hundred sixty-six thousand, nine hundred thirty-nine".