9739943 has 4 divisors (see below), whose sum is σ = 9768360. Its totient is φ = 9711528.

The previous prime is 9739937. The next prime is 9739949. The reversal of 9739943 is 3499379.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3499379 = 13 ⋅269183.

It is an interprime number because it is at equal distance from previous prime (9739937) and next prime (9739949).

It is a cyclic number.

It is not a de Polignac number, because 9739943 - 2¹⁸ = 9477799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9739894 and 9739903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9739949) 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 3 ways as a sum of consecutive naturals, for example, 13688 + ... + 14381.

It is an arithmetic number, because the mean of its divisors is an integer number (2442090).

Almost surely, 2^9739943 is an apocalyptic number.

9739943 is a deficient number, since it is larger than the sum of its proper divisors (28417).

9739943 is a wasteful number, since it uses less digits than its factorization.

9739943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28416.

The product of its digits is 183708, while the sum is 44.

The square root of 9739943 is about 3120.8881748630. Note that the first 3 decimals coincide. The cubic root of 9739943 is about 213.5594556042.

The spelling of 9739943 in words is "nine million, seven hundred thirty-nine thousand, nine hundred forty-three".