568638857 has 2 divisors, whose sum is σ = 568638858. Its totient is φ = 568638856.

The previous prime is 568638827. The next prime is 568638869. The reversal of 568638857 is 758836865.

568638857 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 can be written as a sum of positive squares in only one way, i.e., 515698681 + 52940176 = 22709^2 + 7276^2 .

It is a cyclic number.

It is not a de Polignac number, because 568638857 - 2¹² = 568634761 is a prime.

It is not a weakly prime, because it can be changed into another prime (568638827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284319428 + 284319429.

It is an arithmetic number, because the mean of its divisors is an integer number (284319429).

Almost surely, 2^568638857 is an apocalyptic number.

It is an amenable number.

568638857 is a deficient number, since it is larger than the sum of its proper divisors (1).

568638857 is an equidigital number, since it uses as much as digits as its factorization.

568638857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 56.

The square root of 568638857 is about 23846.1497311411. The cubic root of 568638857 is about 828.4739253804.

The spelling of 568638857 in words is "five hundred sixty-eight million, six hundred thirty-eight thousand, eight hundred fifty-seven".