2798863 has 8 divisors (see below), whose sum is σ = 3013200. Its totient is φ = 2590080.

The previous prime is 2798849. The next prime is 2798867. The reversal of 2798863 is 3688972.

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

It is a cyclic number.

It is not a de Polignac number, because 2798863 - 2⁹ = 2798351 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 (2798867) 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, 313 + ... + 2386.

It is an arithmetic number, because the mean of its divisors is an integer number (376650).

2^2798863 is an apocalyptic number.

2798863 is a deficient number, since it is larger than the sum of its proper divisors (214337).

2798863 is a wasteful number, since it uses less digits than its factorization.

2798863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777.

The product of its digits is 145152, while the sum is 43.

The square root of 2798863 is about 1672.9802748389. The cubic root of 2798863 is about 140.9268940139.

The spelling of 2798863 in words is "two million, seven hundred ninety-eight thousand, eight hundred sixty-three".