568861 has 4 divisors (see below), whose sum is σ = 570400. Its totient is φ = 567324.

The previous prime is 568853. The next prime is 568877. The reversal of 568861 is 168865.

It is a happy number.

568861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 168865 = 5 ⋅33773.

It is a cyclic number.

It is not a de Polignac number, because 568861 - 2³ = 568853 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 (568831) 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, 160 + ... + 1078.

It is an arithmetic number, because the mean of its divisors is an integer number (142600).

2⁵⁶⁸⁸⁶¹ is an apocalyptic number.

It is an amenable number.

568861 is a deficient number, since it is larger than the sum of its proper divisors (1539).

568861 is an equidigital number, since it uses as much as digits as its factorization.

568861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538.

The product of its digits is 11520, while the sum is 34.

The square root of 568861 is about 754.2287451430. The cubic root of 568861 is about 82.8581794503.

The spelling of 568861 in words is "five hundred sixty-eight thousand, eight hundred sixty-one".