2688559 has 2 divisors, whose sum is σ = 2688560. Its totient is φ = 2688558.

The previous prime is 2688547. The next prime is 2688563. The reversal of 2688559 is 9558862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2688559 - 2⁵ = 2688527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2688529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344279 + 1344280.

It is an arithmetic number, because the mean of its divisors is an integer number (1344280).

2^2688559 is an apocalyptic number.

2688559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2688559 is an equidigital number, since it uses as much as digits as its factorization.

2688559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 43.

The square root of 2688559 is about 1639.6825912353. The cubic root of 2688559 is about 139.0507035148.

The spelling of 2688559 in words is "two million, six hundred eighty-eight thousand, five hundred fifty-nine".