9884784 has 160 divisors (see below), whose sum is σ = 32886784. Its totient is φ = 2488320.

The previous prime is 9884783. The next prime is 9884821. The reversal of 9884784 is 4874889.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9884783) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 135372 + ... + 135444.

Almost surely, 2^9884784 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 9884784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16443392).

9884784 is an abundant number, since it is smaller than the sum of its proper divisors (23002000).

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

9884784 is a wasteful number, since it uses less digits than its factorization.

9884784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 129 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 9884784 is about 3144.0076335785. The cubic root of 9884784 is about 214.6128529555.

Subtracting from 9884784 its sum of digits (48), we obtain a square (9884736 = 3144²).

The spelling of 9884784 in words is "nine million, eight hundred eighty-four thousand, seven hundred eighty-four".