2597856 has 24 divisors (see below), whose sum is σ = 6819624. Its totient is φ = 865920.

The previous prime is 2597809. The next prime is 2597857. The reversal of 2597856 is 6587952.

2597856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a d-powerful number, because it can be written as 2¹⁶ + 5⁸ + 9⁵ + 7⁶ + 8⁴ + 5⁹ + 6⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2597857) 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 3 ways as a sum of consecutive naturals, for example, 13435 + ... + 13626.

It is an arithmetic number, because the mean of its divisors is an integer number (284151).

2^2597856 is an apocalyptic number.

It is an amenable number.

2597856 is an abundant number, since it is smaller than the sum of its proper divisors (4221768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2597856 is a wasteful number, since it uses less digits than its factorization.

2597856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27074 (or 27066 counting only the distinct ones).

The product of its digits is 151200, while the sum is 42.

The square root of 2597856 is about 1611.7865863693. The cubic root of 2597856 is about 137.4690795486.

The spelling of 2597856 in words is "two million, five hundred ninety-seven thousand, eight hundred fifty-six".