2598643 has 4 divisors (see below), whose sum is σ = 2647728. Its totient is φ = 2549560.

The previous prime is 2598613. The next prime is 2598653. The reversal of 2598643 is 3468952.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2598643 is a prime.

It is a d-powerful number, because it can be written as 2¹⁸ + 5⁸ + 9 + 8⁴ + 6⁸ + 4⁹ + 3² .

It is a Duffinian 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, 24463 + ... + 24568.

It is an arithmetic number, because the mean of its divisors is an integer number (661932).

2^2598643 is an apocalyptic number.

2598643 is a deficient number, since it is larger than the sum of its proper divisors (49085).

2598643 is an equidigital number, since it uses as much as digits as its factorization.

2598643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49084.

The product of its digits is 51840, while the sum is 37.

The square root of 2598643 is about 1612.0307069036. The cubic root of 2598643 is about 137.4829598718.

The spelling of 2598643 in words is "two million, five hundred ninety-eight thousand, six hundred forty-three".