9898984 has 8 divisors (see below), whose sum is σ = 18560610. Its totient is φ = 4949488.

The previous prime is 9898979. The next prime is 9899003. The reversal of 9898984 is 4898989.

9898984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9746884 + 152100 = 3122^2 + 390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618679 + ... + 618694.

Almost surely, 2^9898984 is an apocalyptic number.

It is an amenable number.

9898984 is a deficient number, since it is larger than the sum of its proper divisors (8661626).

9898984 is a wasteful number, since it uses less digits than its factorization.

9898984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237379 (or 1237375 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 55.

The square root of 9898984 is about 3146.2650873695. The cubic root of 9898984 is about 214.7155712471.

The spelling of 9898984 in words is "nine million, eight hundred ninety-eight thousand, nine hundred eighty-four".