2598861 has 8 divisors (see below), whose sum is σ = 3488704. Its totient is φ = 1720800.

The previous prime is 2598859. The next prime is 2598899. The reversal of 2598861 is 1688952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2598861 - 2¹ = 2598859 is a prime.

2598861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2598811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2416 + ... + 3321.

It is an arithmetic number, because the mean of its divisors is an integer number (436088).

2^2598861 is an apocalyptic number.

It is an amenable number.

2598861 is a deficient number, since it is larger than the sum of its proper divisors (889843).

2598861 is a wasteful number, since it uses less digits than its factorization.

2598861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891.

The product of its digits is 34560, while the sum is 39.

The square root of 2598861 is about 1612.0983220635. The cubic root of 2598861 is about 137.4868042433.

Subtracting from 2598861 its reverse (1688952), we obtain a palindrome (909909).

The spelling of 2598861 in words is "two million, five hundred ninety-eight thousand, eight hundred sixty-one".