568720961 has 2 divisors, whose sum is σ = 568720962. Its totient is φ = 568720960.

The previous prime is 568720937. The next prime is 568720973. The reversal of 568720961 is 169027865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329059600 + 239661361 = 18140^2 + 15481^2 .

It is a cyclic number.

It is not a de Polignac number, because 568720961 - 2¹⁰ = 568719937 is a prime.

It is not a weakly prime, because it can be changed into another prime (568720561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284360480 + 284360481.

It is an arithmetic number, because the mean of its divisors is an integer number (284360481).

Almost surely, 2^568720961 is an apocalyptic number.

It is an amenable number.

568720961 is a deficient number, since it is larger than the sum of its proper divisors (1).

568720961 is an equidigital number, since it uses as much as digits as its factorization.

568720961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 568720961 is about 23847.8712047847. The cubic root of 568720961 is about 828.5137970546.

The spelling of 568720961 in words is "five hundred sixty-eight million, seven hundred twenty thousand, nine hundred sixty-one".