2798559 has 12 divisors (see below), whose sum is σ = 4119336. Its totient is φ = 1830192.

The previous prime is 2798539. The next prime is 2798597. The reversal of 2798559 is 9558972.

It is a happy number.

2798559 is a `hidden beast` number, since 2 + 7 + 98 + 559 = 666.

It is not a de Polignac number, because 2798559 - 2⁵ = 2798527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2457 + ... + 3410.

It is an arithmetic number, because the mean of its divisors is an integer number (343278).

2^2798559 is an apocalyptic number.

2798559 is a deficient number, since it is larger than the sum of its proper divisors (1320777).

2798559 is a wasteful number, since it uses less digits than its factorization.

2798559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926 (or 5923 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 2798559 is about 1672.8894165485. The cubic root of 2798559 is about 140.9217915459.

The spelling of 2798559 in words is "two million, seven hundred ninety-eight thousand, five hundred fifty-nine".