28237 has 8 divisors (see below), whose sum is σ = 32832. Its totient is φ = 24000.

The previous prime is 28229. The next prime is 28277. The reversal of 28237 is 73282.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28237 - 2³ = 28229 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28237.

It is not an unprimeable number, because it can be changed into a prime (28277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 262.

It is an arithmetic number, because the mean of its divisors is an integer number (4104).

2²⁸²³⁷ is an apocalyptic number.

It is an amenable number.

28237 is a deficient number, since it is larger than the sum of its proper divisors (4595).

28237 is a wasteful number, since it uses less digits than its factorization.

28237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179.

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

The square root of 28237 is about 168.0386860220. The cubic root of 28237 is about 30.4513243115.

The spelling of 28237 in words is "twenty-eight thousand, two hundred thirty-seven".