2568623 has 2 divisors, whose sum is σ = 2568624. Its totient is φ = 2568622.

The previous prime is 2568619. The next prime is 2568641. The reversal of 2568623 is 3268652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2568623 - 2² = 2568619 is a prime.

It is a super-2 number, since 2×2568623² = 13195648232258, which contains 22 as substring.

It is equal to p₁₈₇₇₂₇ and since 2568623 and 187727 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2568623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2568653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284311 + 1284312.

It is an arithmetic number, because the mean of its divisors is an integer number (1284312).

2^2568623 is an apocalyptic number.

2568623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2568623 is an equidigital number, since it uses as much as digits as its factorization.

2568623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 2568623 is about 1602.6924221447. The cubic root of 2568623 is about 136.9514986287.

The spelling of 2568623 in words is "two million, five hundred sixty-eight thousand, six hundred twenty-three".