28276233 has 16 divisors (see below), whose sum is σ = 38419200. Its totient is φ = 18495360.

The previous prime is 28276217. The next prime is 28276267. The reversal of 28276233 is 33267282.

It is not a de Polignac number, because 28276233 - 2⁴ = 28276217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28276194 and 28276203.

It is not an unprimeable number, because it can be changed into a prime (28276033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54013 + ... + 54533.

It is an arithmetic number, because the mean of its divisors is an integer number (2401200).

Almost surely, 2^28276233 is an apocalyptic number.

It is an amenable number.

28276233 is a deficient number, since it is larger than the sum of its proper divisors (10142967).

28276233 is a wasteful number, since it uses less digits than its factorization.

28276233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832.

The product of its digits is 24192, while the sum is 33.

The square root of 28276233 is about 5317.5401267879. The cubic root of 28276233 is about 304.6542099224.

The spelling of 28276233 in words is "twenty-eight million, two hundred seventy-six thousand, two hundred thirty-three".