568609 has 2 divisors, whose sum is σ = 568610. Its totient is φ = 568608.

The previous prime is 568577. The next prime is 568619. The reversal of 568609 is 906865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567009 + 1600 = 753^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 568609 - 2⁵ = 568577 is a prime.

It is not a weakly prime, because it can be changed into another prime (568619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284304 + 284305.

It is an arithmetic number, because the mean of its divisors is an integer number (284305).

2⁵⁶⁸⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

568609 is a deficient number, since it is larger than the sum of its proper divisors (1).

568609 is an equidigital number, since it uses as much as digits as its factorization.

568609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 568609 is about 754.0616685656. The cubic root of 568609 is about 82.8459425153.

The spelling of 568609 in words is "five hundred sixty-eight thousand, six hundred nine".