28514 has 8 divisors (see below), whose sum is σ = 43740. Its totient is φ = 13936.

The previous prime is 28513. The next prime is 28517. The reversal of 28514 is 41582.

It can be written as a sum of positive squares in 2 ways, for example, as 27889 + 625 = 167^2 + 25^2 .

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

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (28513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29 + ... + 240.

2²⁸⁵¹⁴ is an apocalyptic number.

28514 is a deficient number, since it is larger than the sum of its proper divisors (15226).

28514 is a wasteful number, since it uses less digits than its factorization.

28514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324.

The product of its digits is 320, while the sum is 20.

The square root of 28514 is about 168.8608894919. The cubic root of 28514 is about 30.5505745171.

The spelling of 28514 in words is "twenty-eight thousand, five hundred fourteen".