9878688 has 36 divisors (see below), whose sum is σ = 28093338. Its totient is φ = 3292800.

The previous prime is 9878657. The next prime is 9878731. The reversal of 9878688 is 8868789.

It can be written as a sum of positive squares in only one way, i.e., 9659664 + 219024 = 3108^2 + 468^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 16863 + ... + 17438.

Almost surely, 2^9878688 is an apocalyptic number.

It is an amenable number.

9878688 is an abundant number, since it is smaller than the sum of its proper divisors (18214650).

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

9878688 is a wasteful number, since it uses less digits than its factorization.

9878688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34317 (or 34306 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 9878688 is about 3143.0380207691. The cubic root of 9878688 is about 214.5687262457.

The spelling of 9878688 in words is "nine million, eight hundred seventy-eight thousand, six hundred eighty-eight".