9439884 has 72 divisors (see below), whose sum is σ = 25865840. Its totient is φ = 2892672.

The previous prime is 9439873. The next prime is 9439889. The reversal of 9439884 is 4889349.

It is a happy number.

It is a super-2 number, since 2×9439884² = 178222819866912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9439889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25122 + ... + 25494.

Almost surely, 2^9439884 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 9439884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12932920).

9439884 is an abundant number, since it is smaller than the sum of its proper divisors (16425956).

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

9439884 is a wasteful number, since it uses less digits than its factorization.

9439884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 434 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 9439884 is about 3072.4394216974. The cubic root of 9439884 is about 211.3434953721.

The spelling of 9439884 in words is "nine million, four hundred thirty-nine thousand, eight hundred eighty-four".