8568013 has 4 divisors (see below), whose sum is σ = 8581788. Its totient is φ = 8554240.

The previous prime is 8568011. The next prime is 8568019. The reversal of 8568013 is 3108658.

8568013 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1582564 + 6985449 = 1258^2 + 2643^2 .

It is a cyclic number.

It is not a de Polignac number, because 8568013 - 2¹ = 8568011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8568011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5908 + ... + 7213.

It is an arithmetic number, because the mean of its divisors is an integer number (2145447).

Almost surely, 2^8568013 is an apocalyptic number.

It is an amenable number.

8568013 is a deficient number, since it is larger than the sum of its proper divisors (13775).

8568013 is a wasteful number, since it uses less digits than its factorization.

8568013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13774.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 8568013 is about 2927.1168408521. The cubic root of 8568013 is about 204.6256344277.

The spelling of 8568013 in words is "eight million, five hundred sixty-eight thousand, thirteen".