28366 has 8 divisors (see below), whose sum is σ = 45864. Its totient is φ = 13080.

The previous prime is 28351. The next prime is 28387. The reversal of 28366 is 66382.

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

It is a nialpdrome in base 13 and base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 28366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520 + ... + 571.

It is an arithmetic number, because the mean of its divisors is an integer number (5733).

2²⁸³⁶⁶ is an apocalyptic number.

28366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28366 is a deficient number, since it is larger than the sum of its proper divisors (17498).

28366 is a wasteful number, since it uses less digits than its factorization.

28366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106.

The product of its digits is 1728, while the sum is 25.

The square root of 28366 is about 168.4220888126. The cubic root of 28366 is about 30.4976259014.

The spelling of 28366 in words is "twenty-eight thousand, three hundred sixty-six".