9943331 has 2 divisors, whose sum is σ = 9943332. Its totient is φ = 9943330.

The previous prime is 9943319. The next prime is 9943333. The reversal of 9943331 is 1333499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9943331 - 2¹⁴ = 9926947 is a prime.

It is a super-2 number, since 2×9943331² = 197739662751122, which contains 22 as substring.

Together with 9943333, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (9943333) 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 as a sum of consecutive naturals, namely, 4971665 + 4971666.

It is an arithmetic number, because the mean of its divisors is an integer number (4971666).

Almost surely, 2^9943331 is an apocalyptic number.

9943331 is a deficient number, since it is larger than the sum of its proper divisors (1).

9943331 is an equidigital number, since it uses as much as digits as its factorization.

9943331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 32.

The square root of 9943331 is about 3153.3047743598. The cubic root of 9943331 is about 215.0357322980.

The spelling of 9943331 in words is "nine million, nine hundred forty-three thousand, three hundred thirty-one".