568278721 has 4 divisors (see below), whose sum is σ = 568864944. Its totient is φ = 567692500.

The previous prime is 568278709. The next prime is 568278727. The reversal of 568278721 is 127872865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 568278721 - 2¹⁷ = 568147649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (568278727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291655 + ... + 293596.

It is an arithmetic number, because the mean of its divisors is an integer number (142216236).

Almost surely, 2^568278721 is an apocalyptic number.

It is an amenable number.

568278721 is a deficient number, since it is larger than the sum of its proper divisors (586223).

568278721 is an equidigital number, since it uses as much as digits as its factorization.

568278721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586222.

The product of its digits is 376320, while the sum is 46.

The square root of 568278721 is about 23838.5972951430. The cubic root of 568278721 is about 828.2989893371.

The spelling of 568278721 in words is "five hundred sixty-eight million, two hundred seventy-eight thousand, seven hundred twenty-one".