22869 has 24 divisors (see below), whose sum is σ = 42560. Its totient is φ = 11880.

The previous prime is 22861. The next prime is 22871. The reversal of 22869 is 96822.

It is not a de Polignac number, because 22869 - 2³ = 22861 is a prime.

It is a super-2 number, since 2×22869² = 1045982322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

22869 is a lucky number.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2074 + ... + 2084.

2²²⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

22869 is a deficient number, since it is larger than the sum of its proper divisors (19691).

22869 is a wasteful number, since it uses less digits than its factorization.

22869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38 (or 21 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 22869 is about 151.2249979335. The cubic root of 22869 is about 28.3845747087.

The spelling of 22869 in words is "twenty-two thousand, eight hundred sixty-nine".