566427689 has 2 divisors, whose sum is σ = 566427690. Its totient is φ = 566427688.

The previous prime is 566427643. The next prime is 566427707. The reversal of 566427689 is 986724665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350925289 + 215502400 = 18733^2 + 14680^2 .

It is a cyclic number.

It is not a de Polignac number, because 566427689 - 2²⁴ = 549650473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 566427689.

It is not a weakly prime, because it can be changed into another prime (566427619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283213844 + 283213845.

It is an arithmetic number, because the mean of its divisors is an integer number (283213845).

Almost surely, 2^566427689 is an apocalyptic number.

It is an amenable number.

566427689 is a deficient number, since it is larger than the sum of its proper divisors (1).

566427689 is an equidigital number, since it uses as much as digits as its factorization.

566427689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 53.

The square root of 566427689 is about 23799.7413641409. The cubic root of 566427689 is about 827.3986825081.

The spelling of 566427689 in words is "five hundred sixty-six million, four hundred twenty-seven thousand, six hundred eighty-nine".