28082875 has 32 divisors (see below), whose sum is σ = 37140480. Its totient is φ = 21168000.

The previous prime is 28082867. The next prime is 28082891. The reversal of 28082875 is 57828082.

It is not a de Polignac number, because 28082875 - 2³ = 28082867 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221062 + ... + 221188.

It is an arithmetic number, because the mean of its divisors is an integer number (1160640).

Almost surely, 2^28082875 is an apocalyptic number.

28082875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28082875 is a deficient number, since it is larger than the sum of its proper divisors (9057605).

28082875 is a wasteful number, since it uses less digits than its factorization.

28082875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 28082875 is about 5299.3277875595. The cubic root of 28082875 is about 303.9581941300.

The spelling of 28082875 in words is "twenty-eight million, eighty-two thousand, eight hundred seventy-five".