2798091 has 16 divisors (see below), whose sum is σ = 4280320. Its totient is φ = 1804680.

The previous prime is 2798087. The next prime is 2798093. The reversal of 2798091 is 1908972.

It is a happy number.

It is not a de Polignac number, because 2798091 - 2² = 2798087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2798093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835 + ... + 2508.

It is an arithmetic number, because the mean of its divisors is an integer number (267520).

2^2798091 is an apocalyptic number.

2798091 is a deficient number, since it is larger than the sum of its proper divisors (1482229).

2798091 is a wasteful number, since it uses less digits than its factorization.

2798091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383 (or 3377 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2798091 is about 1672.7495329547. The cubic root of 2798091 is about 140.9139357083.

The spelling of 2798091 in words is "two million, seven hundred ninety-eight thousand, ninety-one".