2598663 has 4 divisors (see below), whose sum is σ = 3464888. Its totient is φ = 1732440.

The previous prime is 2598653. The next prime is 2598679. The reversal of 2598663 is 3668952.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2598663 - 2⁶ = 2598599 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2598613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433108 + ... + 433113.

It is an arithmetic number, because the mean of its divisors is an integer number (866222).

2^2598663 is an apocalyptic number.

2598663 is a deficient number, since it is larger than the sum of its proper divisors (866225).

2598663 is an equidigital number, since it uses as much as digits as its factorization.

2598663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866224.

The product of its digits is 77760, while the sum is 39.

The square root of 2598663 is about 1612.0369102474. The cubic root of 2598663 is about 137.4833125754.

The spelling of 2598663 in words is "two million, five hundred ninety-eight thousand, six hundred sixty-three".