9983943 has 6 divisors (see below), whose sum is σ = 14421264. Its totient is φ = 6655956.

The previous prime is 9983929. The next prime is 9983959. The reversal of 9983943 is 3493899.

It is not a de Polignac number, because 9983943 - 2¹⁶ = 9918407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9983983) 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 5 ways as a sum of consecutive naturals, for example, 554655 + ... + 554672.

It is an arithmetic number, because the mean of its divisors is an integer number (2403544).

Almost surely, 2^9983943 is an apocalyptic number.

9983943 is a deficient number, since it is larger than the sum of its proper divisors (4437321).

9983943 is a wasteful number, since it uses less digits than its factorization.

9983943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109333 (or 1109330 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 9983943 is about 3159.7378055782. The cubic root of 9983943 is about 215.3280947029.

The spelling of 9983943 in words is "nine million, nine hundred eighty-three thousand, nine hundred forty-three".