9983745 has 24 divisors (see below), whose sum is σ = 17433000. Its totient is φ = 5285376.

The previous prime is 9983723. The next prime is 9983773. The reversal of 9983745 is 5473899.

It can be written as a sum of positive squares in 4 ways, for example, as 23409 + 9960336 = 153^2 + 3156^2 .

It is not a de Polignac number, because 9983745 - 2¹⁵ = 9950977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9983745.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5961 + ... + 7449.

It is an arithmetic number, because the mean of its divisors is an integer number (726375).

Almost surely, 2^9983745 is an apocalyptic number.

It is an amenable number.

9983745 is a deficient number, since it is larger than the sum of its proper divisors (7449255).

9983745 is a wasteful number, since it uses less digits than its factorization.

9983745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1646 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 9983745 is about 3159.7064737092. The cubic root of 9983745 is about 215.3266712424.

The spelling of 9983745 in words is "nine million, nine hundred eighty-three thousand, seven hundred forty-five".