2798558 has 32 divisors (see below), whose sum is σ = 5088960. Its totient is φ = 1128960.

The previous prime is 2798539. The next prime is 2798597. The reversal of 2798558 is 8558972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24710 + ... + 24822.

It is an arithmetic number, because the mean of its divisors is an integer number (159030).

2^2798558 is an apocalyptic number.

2798558 is a deficient number, since it is larger than the sum of its proper divisors (2290402).

2798558 is a wasteful number, since it uses less digits than its factorization.

2798558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212.

The product of its digits is 201600, while the sum is 44.

The square root of 2798558 is about 1672.8891176644. The cubic root of 2798558 is about 140.9217747609.

The spelling of 2798558 in words is "two million, seven hundred ninety-eight thousand, five hundred fifty-eight".