28830875 has 8 divisors (see below), whose sum is σ = 35981088. Its totient is φ = 23064600.

The previous prime is 28830869. The next prime is 28830889. The reversal of 28830875 is 57803882.

It is not a de Polignac number, because 28830875 - 2⁶ = 28830811 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115199 + ... + 115448.

It is an arithmetic number, because the mean of its divisors is an integer number (4497636).

Almost surely, 2^28830875 is an apocalyptic number.

28830875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28830875 is a deficient number, since it is larger than the sum of its proper divisors (7150213).

28830875 is an equidigital number, since it uses as much as digits as its factorization.

28830875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230662 (or 230652 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 28830875 is about 5369.4389837301. The cubic root of 28830875 is about 306.6332699664.

The spelling of 28830875 in words is "twenty-eight million, eight hundred thirty thousand, eight hundred seventy-five".