28568768 has 14 divisors (see below), whose sum is σ = 56691276. Its totient is φ = 14284352.

The previous prime is 28568717. The next prime is 28568779. The reversal of 28568768 is 86786582.

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 as a sum of consecutive naturals, namely, 223130 + ... + 223257.

Almost surely, 2^28568768 is an apocalyptic number.

It is an amenable number.

28568768 is a deficient number, since it is larger than the sum of its proper divisors (28122508).

28568768 is an equidigital number, since it uses as much as digits as its factorization.

28568768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446399 (or 446389 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 28568768 is about 5344.9759587860. The cubic root of 28568768 is about 305.7012191779.

The spelling of 28568768 in words is "twenty-eight million, five hundred sixty-eight thousand, seven hundred sixty-eight".