28083568 has 20 divisors (see below), whose sum is σ = 54943408. Its totient is φ = 13904640.

The previous prime is 28083563. The next prime is 28083589. The reversal of 28083568 is 86538082.

It is a super-2 number, since 2×28083568² = 1577373583221248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28083568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28083563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6873 + ... + 10168.

Almost surely, 2^28083568 is an apocalyptic number.

It is an amenable number.

28083568 is a deficient number, since it is larger than the sum of its proper divisors (26859840).

28083568 is a wasteful number, since it uses less digits than its factorization.

28083568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17152 (or 17146 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 28083568 is about 5299.3931728076. The cubic root of 28083568 is about 303.9606943642.

The spelling of 28083568 in words is "twenty-eight million, eighty-three thousand, five hundred sixty-eight".