9887633984 has 28 divisors (see below), whose sum is σ = 20297355900. Its totient is φ = 4773339648.

The previous prime is 9887633933. The next prime is 9887633999. The reversal of 9887633984 is 4893367889.

It can be written as a sum of positive squares in 2 ways, for example, as 4303360000 + 5584273984 = 65600^2 + 74728^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9887633984.

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 3 ways as a sum of consecutive naturals, for example, 2661839 + ... + 2665550.

Almost surely, 2^9887633984 is an apocalyptic number.

It is an amenable number.

9887633984 is an abundant number, since it is smaller than the sum of its proper divisors (10409721916).

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

9887633984 is a wasteful number, since it uses less digits than its factorization.

9887633984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5327430 (or 5327420 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 65.

The square root of 9887633984 is about 99436.5827248704. The cubic root of 9887633984 is about 2146.3347672170.

The spelling of 9887633984 in words is "nine billion, eight hundred eighty-seven million, six hundred thirty-three thousand, nine hundred eighty-four".