9129984 has 52 divisors (see below), whose sum is σ = 24376416. Its totient is φ = 3039232.

The previous prime is 9129979. The next prime is 9129997. The reversal of 9129984 is 4899219.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11917 + ... + 12659.

Almost surely, 2^9129984 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 9129984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12188208).

9129984 is an abundant number, since it is smaller than the sum of its proper divisors (15246432).

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

9129984 is an equidigital number, since it uses as much as digits as its factorization.

9129984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 748 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 9129984 is about 3021.5863383329. The cubic root of 9129984 is about 209.0049982398.

The spelling of 9129984 in words is "nine million, one hundred twenty-nine thousand, nine hundred eighty-four".