568643 has 2 divisors, whose sum is σ = 568644. Its totient is φ = 568642.

The previous prime is 568627. The next prime is 568657. The reversal of 568643 is 346865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 568643 - 2⁴ = 568627 is a prime.

It is a super-2 number, since 2×568643² = 646709722898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (564643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284321 + 284322.

It is an arithmetic number, because the mean of its divisors is an integer number (284322).

2⁵⁶⁸⁶⁴³ is an apocalyptic number.

568643 is a deficient number, since it is larger than the sum of its proper divisors (1).

568643 is an equidigital number, since it uses as much as digits as its factorization.

568643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 568643 is about 754.0842128038. The cubic root of 568643 is about 82.8475937413.

The spelling of 568643 in words is "five hundred sixty-eight thousand, six hundred forty-three".