22799 has 4 divisors (see below), whose sum is σ = 26064. Its totient is φ = 19536.

The previous prime is 22787. The next prime is 22807. The reversal of 22799 is 99722.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22799 - 2⁴ = 22783 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10 and base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1622 + ... + 1635.

It is an arithmetic number, because the mean of its divisors is an integer number (6516).

2²²⁷⁹⁹ is an apocalyptic number.

22799 is a deficient number, since it is larger than the sum of its proper divisors (3265).

22799 is an equidigital number, since it uses as much as digits as its factorization.

22799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264.

The product of its digits is 2268, while the sum is 29.

The square root of 22799 is about 150.9933773382. The cubic root of 22799 is about 28.3555842129.

It can be divided in two parts, 22 and 799, that multiplied together give a triangular number (17578 = T₁₈₇).

The spelling of 22799 in words is "twenty-two thousand, seven hundred ninety-nine".