28875933 has 12 divisors (see below), whose sum is σ = 43254848. Its totient is φ = 19250460.

The previous prime is 28875929. The next prime is 28875941. The reversal of 28875933 is 33957882.

It is not a de Polignac number, because 28875933 - 2² = 28875929 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28875233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59173 + ... + 59658.

Almost surely, 2^28875933 is an apocalyptic number.

It is an amenable number.

28875933 is a deficient number, since it is larger than the sum of its proper divisors (14378915).

28875933 is an equidigital number, since it uses as much as digits as its factorization.

28875933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118846 (or 118834 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 28875933 is about 5373.6331285267. The cubic root of 28875933 is about 306.7929262444.

The spelling of 28875933 in words is "twenty-eight million, eight hundred seventy-five thousand, nine hundred thirty-three".