9816998 has 16 divisors (see below), whose sum is σ = 15525216. Its totient is φ = 4646400.

The previous prime is 9816997. The next prime is 9817013. The reversal of 9816998 is 8996189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9816997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3590 + ... + 5702.

It is an arithmetic number, because the mean of its divisors is an integer number (970326).

Almost surely, 2^9816998 is an apocalyptic number.

9816998 is a deficient number, since it is larger than the sum of its proper divisors (5708218).

9816998 is a wasteful number, since it uses less digits than its factorization.

9816998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239.

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

The square root of 9816998 is about 3133.2088982384. The cubic root of 9816998 is about 214.1211501395.

The spelling of 9816998 in words is "nine million, eight hundred sixteen thousand, nine hundred ninety-eight".