2596681 has 2 divisors, whose sum is σ = 2596682. Its totient is φ = 2596680.

The previous prime is 2596679. The next prime is 2596687. The reversal of 2596681 is 1866952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2449225 + 147456 = 1565^2 + 384^2 .

It is a cyclic number.

It is not a de Polignac number, because 2596681 - 2¹ = 2596679 is a prime.

It is a super-2 number, since 2×2596681² = 13485504431522, which contains 22 as substring.

Together with 2596679, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2596681.

It is not a weakly prime, because it can be changed into another prime (2596687) 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, 1298340 + 1298341.

It is an arithmetic number, because the mean of its divisors is an integer number (1298341).

2^2596681 is an apocalyptic number.

It is an amenable number.

2596681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2596681 is an equidigital number, since it uses as much as digits as its factorization.

2596681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The square root of 2596681 is about 1611.4220427933. The cubic root of 2596681 is about 137.4483508494.

The spelling of 2596681 in words is "two million, five hundred ninety-six thousand, six hundred eighty-one".