9983740 has 96 divisors (see below), whose sum is σ = 24837120. Its totient is φ = 3338496.

The previous prime is 9983723. The next prime is 9983773. The reversal of 9983740 is 473899.

It is a junction number, because it is equal to n+sod(n) for n = 9983693 and 9983702.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 212397 + ... + 212443.

It is an arithmetic number, because the mean of its divisors is an integer number (258720).

Almost surely, 2^9983740 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 9983740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12418560).

9983740 is an abundant number, since it is smaller than the sum of its proper divisors (14853380).

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

9983740 is a wasteful number, since it uses less digits than its factorization.

9983740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 9983740 is about 3159.7056824964. The cubic root of 9983740 is about 215.3266352962.

The spelling of 9983740 in words is "nine million, nine hundred eighty-three thousand, seven hundred forty".