2593681 has 2 divisors, whose sum is σ = 2593682. Its totient is φ = 2593680.

The previous prime is 2593651. The next prime is 2593691. The reversal of 2593681 is 1863952.

2593681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1985281 + 608400 = 1409^2 + 780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2593681 is a prime.

It is a super-2 number, since 2×2593681² = 13454362259522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2593621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1296840 + 1296841.

It is an arithmetic number, because the mean of its divisors is an integer number (1296841).

2^2593681 is an apocalyptic number.

It is an amenable number.

2593681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2593681 is an equidigital number, since it uses as much as digits as its factorization.

2593681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 2593681 is about 1610.4909189437. The cubic root of 2593681 is about 137.3953981312.

The spelling of 2593681 in words is "two million, five hundred ninety-three thousand, six hundred eighty-one".