2598749 has 4 divisors (see below), whose sum is σ = 2647836. Its totient is φ = 2549664.

The previous prime is 2598737. The next prime is 2598751. The reversal of 2598749 is 9478952.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1170724 + 1428025 = 1082^2 + 1195^2 .

It is a cyclic number.

It is not a de Polignac number, because 2598749 - 2⁴ = 2598733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2598779) 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, 24464 + ... + 24569.

It is an arithmetic number, because the mean of its divisors is an integer number (661959).

2^2598749 is an apocalyptic number.

It is an amenable number.

2598749 is a deficient number, since it is larger than the sum of its proper divisors (49087).

2598749 is an equidigital number, since it uses as much as digits as its factorization.

2598749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49086.

The product of its digits is 181440, while the sum is 44.

The square root of 2598749 is about 1612.0635843539. The cubic root of 2598749 is about 137.4848291802.

The spelling of 2598749 in words is "two million, five hundred ninety-eight thousand, seven hundred forty-nine".