9998768 has 40 divisors (see below), whose sum is σ = 21279888. Its totient is φ = 4522752.

The previous prime is 9998753. The next prime is 9998777. The reversal of 9998768 is 8678999.

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, 10571 + ... + 11477.

Almost surely, 2^9998768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9998768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10639944).

9998768 is an abundant number, since it is smaller than the sum of its proper divisors (11281120).

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

9998768 is a wasteful number, since it uses less digits than its factorization.

9998768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 975 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 56.

The square root of 9998768 is about 3162.0828578644. The cubic root of 9998768 is about 215.4346210947.

The spelling of 9998768 in words is "nine million, nine hundred ninety-eight thousand, seven hundred sixty-eight".