28885375 has 16 divisors (see below), whose sum is σ = 36597600. Its totient is φ = 22756800.

The previous prime is 28885349. The next prime is 28885403. The reversal of 28885375 is 57358882.

It is not a de Polignac number, because 28885375 - 2⁵ = 28885343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6651 + ... + 10099.

It is an arithmetic number, because the mean of its divisors is an integer number (2287350).

Almost surely, 2^28885375 is an apocalyptic number.

28885375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28885375 is a deficient number, since it is larger than the sum of its proper divisors (7712225).

28885375 is an equidigital number, since it uses as much as digits as its factorization.

28885375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531 (or 3521 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The square root of 28885375 is about 5374.5116057182. The cubic root of 28885375 is about 306.8263615062.

The spelling of 28885375 in words is "twenty-eight million, eight hundred eighty-five thousand, three hundred seventy-five".