28063 has 8 divisors (see below), whose sum is σ = 33920. Its totient is φ = 22680.

The previous prime is 28057. The next prime is 28069. The reversal of 28063 is 36082.

It is an interprime number because it is at equal distance from previous prime (28057) and next prime (28069).

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

It is not a de Polignac number, because 28063 - 2⁵ = 28031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

28063 is a modest number, since divided by 63 gives 28 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 28063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28069) 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 7 ways as a sum of consecutive naturals, for example, 28 + ... + 238.

It is an arithmetic number, because the mean of its divisors is an integer number (4240).

2²⁸⁰⁶³ is an apocalyptic number.

28063 is a deficient number, since it is larger than the sum of its proper divisors (5857).

28063 is a wasteful number, since it uses less digits than its factorization.

28063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 28063 is about 167.5201480420. The cubic root of 28063 is about 30.3886470766.

Adding to 28063 its sum of digits (19), we get a palindrome (28082).

It can be divided in two parts, 2806 and 3, that added together give a square (2809 = 53²).

The spelling of 28063 in words is "twenty-eight thousand, sixty-three".