28502 has 4 divisors (see below), whose sum is σ = 42756. Its totient is φ = 14250.

The previous prime is 28499. The next prime is 28513. The reversal of 28502 is 20582.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7124 + ... + 7127.

It is an arithmetic number, because the mean of its divisors is an integer number (10689).

2²⁸⁵⁰² is an apocalyptic number.

28502 is a deficient number, since it is larger than the sum of its proper divisors (14254).

28502 is a wasteful number, since it uses less digits than its factorization.

28502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14253.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 28502 is about 168.8253535462. The cubic root of 28502 is about 30.5462882211.

The spelling of 28502 in words is "twenty-eight thousand, five hundred two".