9876656 has 40 divisors (see below), whose sum is σ = 20556720. Its totient is φ = 4582656.

The previous prime is 9876641. The next prime is 9876673. The reversal of 9876656 is 6566789.

It is a self number, because there is not a number n which added to its sum of digits gives 9876656.

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 7 ways as a sum of consecutive naturals, for example, 15806 + ... + 16418.

It is an arithmetic number, because the mean of its divisors is an integer number (513918).

Almost surely, 2^9876656 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 9876656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10278360).

9876656 is an abundant number, since it is smaller than the sum of its proper divisors (10680064).

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

9876656 is a wasteful number, since it uses less digits than its factorization.

9876656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 687 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 9876656 is about 3142.7147500211. The cubic root of 9876656 is about 214.5540133084.

The spelling of 9876656 in words is "nine million, eight hundred seventy-six thousand, six hundred fifty-six".