22889 has 4 divisors (see below), whose sum is σ = 23424. Its totient is φ = 22356.

The previous prime is 22877. The next prime is 22901. The reversal of 22889 is 98822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98822 = 2 ⋅49411.

It is an interprime number because it is at equal distance from previous prime (22877) and next prime (22901).

It is a cyclic number.

It is not a de Polignac number, because 22889 - 2¹² = 18793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22859) 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, 197 + ... + 290.

It is an arithmetic number, because the mean of its divisors is an integer number (5856).

2²²⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

22889 is a deficient number, since it is larger than the sum of its proper divisors (535).

22889 is an equidigital number, since it uses as much as digits as its factorization.

22889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534.

The product of its digits is 2304, while the sum is 29.

The square root of 22889 is about 151.2911101156. The cubic root of 22889 is about 28.3928468396.

It can be divided in two parts, 2 and 2889, that multiplied together give a triangular number (5778 = T₁₀₇).

The spelling of 22889 in words is "twenty-two thousand, eight hundred eighty-nine".