28048875 has 16 divisors (see below), whose sum is σ = 46673952. Its totient is φ = 14959200.

The previous prime is 28048859. The next prime is 28048897. The reversal of 28048875 is 57884082.

It is not a de Polignac number, because 28048875 - 2⁴ = 28048859 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37024 + ... + 37773.

It is an arithmetic number, because the mean of its divisors is an integer number (2917122).

Almost surely, 2^28048875 is an apocalyptic number.

28048875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28048875 is a deficient number, since it is larger than the sum of its proper divisors (18625077).

28048875 is an equidigital number, since it uses as much as digits as its factorization.

28048875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74815 (or 74805 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 28048875 is about 5296.1188619592. The cubic root of 28048875 is about 303.8354769686.

The spelling of 28048875 in words is "twenty-eight million, forty-eight thousand, eight hundred seventy-five".