28063275 has 12 divisors (see below), whose sum is σ = 46398072. Its totient is φ = 14967040.

The previous prime is 28063237. The next prime is 28063283. The reversal of 28063275 is 57236082.

It is not a de Polignac number, because 28063275 - 2¹⁵ = 28030507 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 11 ways as a sum of consecutive naturals, for example, 187014 + ... + 187163.

It is an arithmetic number, because the mean of its divisors is an integer number (3866506).

Almost surely, 2^28063275 is an apocalyptic number.

28063275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28063275 is a deficient number, since it is larger than the sum of its proper divisors (18334797).

28063275 is a wasteful number, since it uses less digits than its factorization.

28063275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374190 (or 374185 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 28063275 is about 5297.4781736219. The cubic root of 28063275 is about 303.8874633953.

The spelling of 28063275 in words is "twenty-eight million, sixty-three thousand, two hundred seventy-five".