28000568 has 32 divisors (see below), whose sum is σ = 56073600. Its totient is φ = 13076448.

The previous prime is 28000561. The next prime is 28000571. The reversal of 28000568 is 86500082.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28000568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28000561) 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 7 ways as a sum of consecutive naturals, for example, 6143 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (1752300).

Almost surely, 2^28000568 is an apocalyptic number.

It is an amenable number.

28000568 is an abundant number, since it is smaller than the sum of its proper divisors (28073032).

28000568 is a wasteful number, since it uses less digits than its factorization.

28000568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611 (or 3607 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 28000568 is about 5291.5562928122. The cubic root of 28000568 is about 303.6609504862.

The spelling of 28000568 in words is "twenty-eight million, five hundred sixty-eight", and thus it is an aban number.