22837 has 4 divisors (see below), whose sum is σ = 23436. Its totient is φ = 22240.

The previous prime is 22817. The next prime is 22853. The reversal of 22837 is 73822.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1521 + 21316 = 39^2 + 146^2 .

It is a cyclic number.

It is not a de Polignac number, because 22837 - 2⁷ = 22709 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22807) 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, 238 + ... + 319.

It is an arithmetic number, because the mean of its divisors is an integer number (5859).

2²²⁸³⁷ is an apocalyptic number.

It is an amenable number.

22837 is a deficient number, since it is larger than the sum of its proper divisors (599).

22837 is an equidigital number, since it uses as much as digits as its factorization.

22837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598.

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

The square root of 22837 is about 151.1191582825. The cubic root of 22837 is about 28.3713292618.

The spelling of 22837 in words is "twenty-two thousand, eight hundred thirty-seven".