2568889 has 4 divisors (see below), whose sum is σ = 2575440. Its totient is φ = 2562340.

The previous prime is 2568871. The next prime is 2568901. The reversal of 2568889 is 9888652.

It is a happy number.

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 2568889 - 2¹³ = 2560697 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2568869) 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, 2647 + ... + 3484.

It is an arithmetic number, because the mean of its divisors is an integer number (643860).

2^2568889 is an apocalyptic number.

It is an amenable number.

2568889 is a deficient number, since it is larger than the sum of its proper divisors (6551).

2568889 is an equidigital number, since it uses as much as digits as its factorization.

2568889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6550.

The product of its digits is 276480, while the sum is 46.

The square root of 2568889 is about 1602.7754053516. The cubic root of 2568889 is about 136.9562259140.

The spelling of 2568889 in words is "two million, five hundred sixty-eight thousand, eight hundred eighty-nine".