2798 has 4 divisors (see below), whose sum is σ = 4200. Its totient is φ = 1398.

The previous prime is 2797. The next prime is 2801. The reversal of 2798 is 8972.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698 + ... + 701.

It is an arithmetic number, because the mean of its divisors is an integer number (1050).

2798 is a deficient number, since it is larger than the sum of its proper divisors (1402).

2798 is a wasteful number, since it uses less digits than its factorization.

2798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401.

The product of its digits is 1008, while the sum is 26.

The square root of 2798 is about 52.8961246218. The cubic root of 2798 is about 14.0912408083.

Subtracting from 2798 its sum of digits (26), we obtain a palindrome (2772).

It can be divided in two parts, 27 and 98, that added together give a cube (125 = 5³).

The spelling of 2798 in words is "two thousand, seven hundred ninety-eight".