568721423 has 2 divisors, whose sum is σ = 568721424. Its totient is φ = 568721422.

The previous prime is 568721369. The next prime is 568721449. The reversal of 568721423 is 324127865.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 568721423 - 2⁶ = 568721359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (568720423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284360711 + 284360712.

It is an arithmetic number, because the mean of its divisors is an integer number (284360712).

Almost surely, 2^568721423 is an apocalyptic number.

568721423 is a deficient number, since it is larger than the sum of its proper divisors (1).

568721423 is an equidigital number, since it uses as much as digits as its factorization.

568721423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 568721423 is about 23847.8808911819. The cubic root of 568721423 is about 828.5140214020.

The spelling of 568721423 in words is "five hundred sixty-eight million, seven hundred twenty-one thousand, four hundred twenty-three".