9998844 has 24 divisors (see below), whose sum is σ = 23614080. Its totient is φ = 3292464.

The previous prime is 9998809. The next prime is 9998851. The reversal of 9998844 is 4488999.

9998844 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 nialpdrome in base 10.

It is a zygodrome in base 10.

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, 4024 + ... + 6015.

It is an arithmetic number, because the mean of its divisors is an integer number (983920).

Almost surely, 2^9998844 is an apocalyptic number.

It is an amenable number.

9998844 is an abundant number, since it is smaller than the sum of its proper divisors (13615236).

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

9998844 is a wasteful number, since it uses less digits than its factorization.

9998844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10129 (or 10127 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 9998844 is about 3162.0948752370. The cubic root of 9998844 is about 215.4351669283.

The spelling of 9998844 in words is "nine million, nine hundred ninety-eight thousand, eight hundred forty-four".