22873 has 4 divisors (see below), whose sum is σ = 23220. Its totient is φ = 22528.

The previous prime is 22871. The next prime is 22877. The reversal of 22873 is 37822.

It is a happy number.

22873 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37822 = 2 ⋅18911.

It can be written as a sum of positive squares in 2 ways, for example, as 15129 + 7744 = 123^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 22873 - 2¹ = 22871 is a prime.

It is a Duffinian number.

22873 is an undulating number in base 16.

It is not an unprimeable number, because it can be changed into a prime (22871) 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, 40 + ... + 217.

It is an arithmetic number, because the mean of its divisors is an integer number (5805).

2²²⁸⁷³ is an apocalyptic number.

It is an amenable number.

22873 is a deficient number, since it is larger than the sum of its proper divisors (347).

22873 is an equidigital number, since it uses as much as digits as its factorization.

22873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346.

The product of its digits is 672, while the sum is 22.

The square root of 22873 is about 151.2382226820. The cubic root of 22873 is about 28.3862295206.

Subtracting from 22873 its product of digits (672), we obtain a square (22201 = 149²).

The spelling of 22873 in words is "twenty-two thousand, eight hundred seventy-three".