9988856 has 16 divisors (see below), whose sum is σ = 18779040. Its totient is φ = 4981120.

The previous prime is 9988817. The next prime is 9988873. The reversal of 9988856 is 6588899.

9988856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9988798 and 9988807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000 + ... + 4896.

It is an arithmetic number, because the mean of its divisors is an integer number (1173690).

Almost surely, 2^9988856 is an apocalyptic number.

It is an amenable number.

9988856 is a deficient number, since it is larger than the sum of its proper divisors (8790184).

9988856 is a wasteful number, since it uses less digits than its factorization.

9988856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334 (or 3330 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 53.

The square root of 9988856 is about 3160.5151478833. The cubic root of 9988856 is about 215.3634091890.

The spelling of 9988856 in words is "nine million, nine hundred eighty-eight thousand, eight hundred fifty-six".