28259 has 8 divisors (see below), whose sum is σ = 35328. Its totient is φ = 21960.

The previous prime is 28229. The next prime is 28277. The reversal of 28259 is 95282.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28259 is a prime.

It is a Duffinian number.

28259 is a modest number, since divided by 259 gives 28 as remainder.

It is a plaindrome in base 6.

It is a zygodrome in base 6.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28259.

It is not an unprimeable number, because it can be changed into a prime (28219) 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, 107 + ... + 260.

It is an arithmetic number, because the mean of its divisors is an integer number (4416).

2²⁸²⁵⁹ is an apocalyptic number.

28259 is a deficient number, since it is larger than the sum of its proper divisors (7069).

28259 is a wasteful number, since it uses less digits than its factorization.

28259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 1440, while the sum is 26.

The square root of 28259 is about 168.1041343929. The cubic root of 28259 is about 30.4592306663.

It can be divided in two parts, 2825 and 9, that multiplied together give a triangular number (25425 = T₂₂₅).

The spelling of 28259 in words is "twenty-eight thousand, two hundred fifty-nine".