28560876 has 48 divisors (see below), whose sum is σ = 70546560. Its totient is φ = 8993232.

The previous prime is 28560869. The next prime is 28560893. The reversal of 28560876 is 67806582.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82135 + ... + 82481.

It is an arithmetic number, because the mean of its divisors is an integer number (1469720).

Almost surely, 2^28560876 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 28560876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35273280).

28560876 is an abundant number, since it is smaller than the sum of its proper divisors (41985684).

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

28560876 is a wasteful number, since it uses less digits than its factorization.

28560876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 28560876 is about 5344.2376444166. The cubic root of 28560876 is about 305.6730670339.

The spelling of 28560876 in words is "twenty-eight million, five hundred sixty thousand, eight hundred seventy-six".