9949943 has 2 divisors, whose sum is σ = 9949944. Its totient is φ = 9949942.

The previous prime is 9949931. The next prime is 9949963. The reversal of 9949943 is 3499499.

It is a happy number.

9949943 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 an emirp because it is prime and its reverse (3499499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9949943 - 2¹² = 9945847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9949963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4974971 + 4974972.

It is an arithmetic number, because the mean of its divisors is an integer number (4974972).

Almost surely, 2^9949943 is an apocalyptic number.

9949943 is a deficient number, since it is larger than the sum of its proper divisors (1).

9949943 is an equidigital number, since it uses as much as digits as its factorization.

9949943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 47.

The square root of 9949943 is about 3154.3530239972. The cubic root of 9949943 is about 215.0833857193.

The spelling of 9949943 in words is "nine million, nine hundred forty-nine thousand, nine hundred forty-three".