22798 has 4 divisors (see below), whose sum is σ = 34200. Its totient is φ = 11398.

The previous prime is 22787. The next prime is 22807. The reversal of 22798 is 89722.

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

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5698 + ... + 5701.

It is an arithmetic number, because the mean of its divisors is an integer number (8550).

2²²⁷⁹⁸ is an apocalyptic number.

22798 is a deficient number, since it is larger than the sum of its proper divisors (11402).

22798 is a wasteful number, since it uses less digits than its factorization.

22798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11401.

The product of its digits is 2016, while the sum is 28.

The square root of 22798 is about 150.9900658984. The cubic root of 22798 is about 28.3551696333.

It can be divided in two parts, 227 and 98, that added together give a triangular number (325 = T₂₅).

The spelling of 22798 in words is "twenty-two thousand, seven hundred ninety-eight".