28063285 has 16 divisors (see below), whose sum is σ = 35985600. Its totient is φ = 20946816.

The previous prime is 28063283. The next prime is 28063297. The reversal of 28063285 is 58236082.

It is not a de Polignac number, because 28063285 - 2¹ = 28063283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28063285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28063283) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4161 + ... + 8569.

It is an arithmetic number, because the mean of its divisors is an integer number (2249100).

Almost surely, 2^28063285 is an apocalyptic number.

It is an amenable number.

28063285 is a deficient number, since it is larger than the sum of its proper divisors (7922315).

28063285 is a wasteful number, since it uses less digits than its factorization.

28063285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 28063285 is about 5297.4791174671. The cubic root of 28063285 is about 303.8874994908.

The spelling of 28063285 in words is "twenty-eight million, sixty-three thousand, two hundred eighty-five".