2595861 has 16 divisors (see below), whose sum is σ = 3897600. Its totient is φ = 1707264.

The previous prime is 2595851. The next prime is 2595871. The reversal of 2595861 is 1685952.

It is a happy number.

2595861 is a `hidden beast` number, since 2 + 595 + 8 + 61 = 666.

2595861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2595851) and next prime (2595871).

It is not a de Polignac number, because 2595861 - 2⁹ = 2595349 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2595821) 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 in 15 ways as a sum of consecutive naturals, for example, 1525 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (243600).

2^2595861 is an apocalyptic number.

It is an amenable number.

2595861 is a deficient number, since it is larger than the sum of its proper divisors (1301739).

2595861 is a wasteful number, since it uses less digits than its factorization.

2595861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1299 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 2595861 is about 1611.1675890484. The cubic root of 2595861 is about 137.4338811586.

Subtracting from 2595861 its reverse (1685952), we obtain a palindrome (909909).

The spelling of 2595861 in words is "two million, five hundred ninety-five thousand, eight hundred sixty-one".