9998816 has 24 divisors (see below), whose sum is σ = 19774944. Its totient is φ = 4976640.

The previous prime is 9998809. The next prime is 9998851. The reversal of 9998816 is 6188999.

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, 8096 + ... + 9248.

It is an arithmetic number, because the mean of its divisors is an integer number (823956).

Almost surely, 2^9998816 is an apocalyptic number.

It is an amenable number.

9998816 is a deficient number, since it is larger than the sum of its proper divisors (9776128).

9998816 is a wasteful number, since it uses less digits than its factorization.

9998816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1426 counting only the distinct ones).

The product of its digits is 279936, while the sum is 50.

The square root of 9998816 is about 3162.0904477892. The cubic root of 9998816 is about 215.4349658320.

The spelling of 9998816 in words is "nine million, nine hundred ninety-eight thousand, eight hundred sixteen".