28326 has 8 divisors (see below), whose sum is σ = 56664. Its totient is φ = 9440.

The previous prime is 28319. The next prime is 28349. The reversal of 28326 is 62382.

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

28326 is an admirable number.

It is a congruent number.

It is an unprimeable number.

28326 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2355 + ... + 2366.

It is an arithmetic number, because the mean of its divisors is an integer number (7083).

2²⁸³²⁶ is an apocalyptic number.

28326 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28332).

28326 is a wasteful number, since it uses less digits than its factorization.

28326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726.

The product of its digits is 576, while the sum is 21.

The square root of 28326 is about 168.3032976504. The cubic root of 28326 is about 30.4832838616.

The spelling of 28326 in words is "twenty-eight thousand, three hundred twenty-six".