28560688 has 40 divisors (see below), whose sum is σ = 60596816. Its totient is φ = 12960000.

The previous prime is 28560671. The next prime is 28560691. The reversal of 28560688 is 88606582.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 11563 + ... + 13813.

Almost surely, 2^28560688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28560688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30298408).

28560688 is an abundant number, since it is smaller than the sum of its proper divisors (32036128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28560688 is a wasteful number, since it uses less digits than its factorization.

28560688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 28560688 is about 5344.2200553495. The cubic root of 28560688 is about 305.6723963418.

The spelling of 28560688 in words is "twenty-eight million, five hundred sixty thousand, six hundred eighty-eight".