2598864 has 40 divisors (see below), whose sum is σ = 6948960. Its totient is φ = 835968.

The previous prime is 2598859. The next prime is 2598899. The reversal of 2598864 is 4688952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459 + ... + 2325.

It is an arithmetic number, because the mean of its divisors is an integer number (173724).

2^2598864 is an apocalyptic number.

2598864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2598864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3474480).

2598864 is an abundant number, since it is smaller than the sum of its proper divisors (4350096).

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

2598864 is a wasteful number, since it uses less digits than its factorization.

2598864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1901 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 2598864 is about 1612.0992525276. The cubic root of 2598864 is about 137.4868571460.

It can be divided in two parts, 25 and 98864, that added together give a palindrome (98889).

The spelling of 2598864 in words is "two million, five hundred ninety-eight thousand, eight hundred sixty-four".