22829 has 4 divisors (see below), whose sum is σ = 23484. Its totient is φ = 22176.

The previous prime is 22817. The next prime is 22853. The reversal of 22829 is 92822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92822 = 2 ⋅46411.

It can be written as a sum of positive squares in 2 ways, for example, as 9604 + 13225 = 98^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 22829 - 2⁸ = 22573 is a prime.

It is a super-4 number, since 4×22829⁴ = 1086444495078496324, which contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

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 (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, 272 + ... + 345.

It is an arithmetic number, because the mean of its divisors is an integer number (5871).

2²²⁸²⁹ is an apocalyptic number.

It is an amenable number.

22829 is a deficient number, since it is larger than the sum of its proper divisors (655).

22829 is an equidigital number, since it uses as much as digits as its factorization.

22829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654.

The product of its digits is 576, while the sum is 23.

The square root of 22829 is about 151.0926867853. The cubic root of 22829 is about 28.3680159670.

The spelling of 22829 in words is "twenty-two thousand, eight hundred twenty-nine".