28033875 has 24 divisors (see below), whose sum is σ = 50537760. Its totient is φ = 14950800.

The previous prime is 28033813. The next prime is 28033877. The reversal of 28033875 is 57833082.

It is not a de Polignac number, because 28033875 - 2²⁴ = 11256659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28033877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11335 + ... + 13584.

It is an arithmetic number, because the mean of its divisors is an integer number (2105740).

Almost surely, 2^28033875 is an apocalyptic number.

28033875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28033875 is a deficient number, since it is larger than the sum of its proper divisors (22503885).

28033875 is a wasteful number, since it uses less digits than its factorization.

28033875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24940 (or 24927 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 28033875 is about 5294.7025412199. The cubic root of 28033875 is about 303.7813055170.

The spelling of 28033875 in words is "twenty-eight million, thirty-three thousand, eight hundred seventy-five".