28395 has 12 divisors (see below), whose sum is σ = 49296. Its totient is φ = 15120.

The previous prime is 28393. The next prime is 28403. The reversal of 28395 is 59382.

It is not a de Polignac number, because 28395 - 2¹ = 28393 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 8⁴ + 3⁸ + 9³ + 5⁴ .

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28395.

It is not an unprimeable number, because it can be changed into a prime (28393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271 + ... + 360.

It is an arithmetic number, because the mean of its divisors is an integer number (4108).

2²⁸³⁹⁵ is an apocalyptic number.

28395 is a deficient number, since it is larger than the sum of its proper divisors (20901).

28395 is a wasteful number, since it uses less digits than its factorization.

28395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 639 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 28395 is about 168.5081600398. The cubic root of 28395 is about 30.5080154513.

It can be divided in two parts, 283 and 95, that added together give a triangular number (378 = T₂₇).

The spelling of 28395 in words is "twenty-eight thousand, three hundred ninety-five".