9969943 has 2 divisors, whose sum is σ = 9969944. Its totient is φ = 9969942.

The previous prime is 9969931. The next prime is 9969959. The reversal of 9969943 is 3499699.

9969943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9969943 - 2⁹ = 9969431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9969913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984971 + 4984972.

It is an arithmetic number, because the mean of its divisors is an integer number (4984972).

Almost surely, 2^9969943 is an apocalyptic number.

9969943 is a deficient number, since it is larger than the sum of its proper divisors (1).

9969943 is an equidigital number, since it uses as much as digits as its factorization.

9969943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 472392, while the sum is 49.

The square root of 9969943 is about 3157.5216547159. The cubic root of 9969943 is about 215.2273995668.

The spelling of 9969943 in words is "nine million, nine hundred sixty-nine thousand, nine hundred forty-three".