9998736 has 80 divisors (see below), whose sum is σ = 29194560. Its totient is φ = 2920960.

The previous prime is 9998719. The next prime is 9998741. The reversal of 9998736 is 6378999.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14986 + ... + 15638.

It is an arithmetic number, because the mean of its divisors is an integer number (364932).

Almost surely, 2^9998736 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 9998736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14597280).

9998736 is an abundant number, since it is smaller than the sum of its proper divisors (19195824).

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

9998736 is a wasteful number, since it uses less digits than its factorization.

9998736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 698 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 9998736 is about 3162.0777979044. The cubic root of 9998736 is about 215.4343912692.

The spelling of 9998736 in words is "nine million, nine hundred ninety-eight thousand, seven hundred thirty-six".