28850 has 12 divisors (see below), whose sum is σ = 53754. Its totient is φ = 11520.

The previous prime is 28843. The next prime is 28859. The reversal of 28850 is 5882.

28850 = T₃₅ + T₃₆ + ... + T₅₉.

It can be written as a sum of positive squares in 3 ways, for example, as 27889 + 961 = 167^2 + 31^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28859) by changing a digit.

28850 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239 + ... + 338.

2²⁸⁸⁵⁰ is an apocalyptic number.

28850 is a deficient number, since it is larger than the sum of its proper divisors (24904).

28850 is a wasteful number, since it uses less digits than its factorization.

28850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 28850 is about 169.8528775146. The cubic root of 28850 is about 30.6701056845.

It can be divided in two parts, 288 and 50, that multiplied together give a square (14400 = 120²).

The spelling of 28850 in words is "twenty-eight thousand, eight hundred fifty".