9443939 has 2 divisors, whose sum is σ = 9443940. Its totient is φ = 9443938.

The previous prime is 9443909. The next prime is 9443947. The reversal of 9443939 is 9393449.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9443939 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9443896 and 9443905.

It is not a weakly prime, because it can be changed into another prime (9443909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4721969 + 4721970.

It is an arithmetic number, because the mean of its divisors is an integer number (4721970).

Almost surely, 2^9443939 is an apocalyptic number.

9443939 is a deficient number, since it is larger than the sum of its proper divisors (1).

9443939 is an equidigital number, since it uses as much as digits as its factorization.

9443939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 41.

The square root of 9443939 is about 3073.0992499430. The cubic root of 9443939 is about 211.3737526363.

The spelling of 9443939 in words is "nine million, four hundred forty-three thousand, nine hundred thirty-nine".