28327 has 4 divisors (see below), whose sum is σ = 30520. Its totient is φ = 26136.

The previous prime is 28319. The next prime is 28349. The reversal of 28327 is 72382.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72382 = 2 ⋅36191.

It is a cyclic number.

It is not a de Polignac number, because 28327 - 2³ = 28319 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 28298 and 28307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28307) 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, 1077 + ... + 1102.

It is an arithmetic number, because the mean of its divisors is an integer number (7630).

2²⁸³²⁷ is an apocalyptic number.

28327 is a deficient number, since it is larger than the sum of its proper divisors (2193).

28327 is a wasteful number, since it uses less digits than its factorization.

28327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192.

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

The square root of 28327 is about 168.3062684513. The cubic root of 28327 is about 30.4836425771.

The spelling of 28327 in words is "twenty-eight thousand, three hundred twenty-seven".