9900984 has 32 divisors (see below), whose sum is σ = 25013520. Its totient is φ = 3265536.

The previous prime is 9900959. The next prime is 9901007. The reversal of 9900984 is 4890099.

9900984 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202 + ... + 4454.

Almost surely, 2^9900984 is an apocalyptic number.

It is an amenable number.

9900984 is an abundant number, since it is smaller than the sum of its proper divisors (15112536).

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

9900984 is a wasteful number, since it uses less digits than its factorization.

9900984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4359 (or 4355 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 9900984 is about 3146.5829084898. The cubic root of 9900984 is about 214.7300307184.

The spelling of 9900984 in words is "nine million, nine hundred thousand, nine hundred eighty-four".