9968839 has 2 divisors, whose sum is σ = 9968840. Its totient is φ = 9968838.

The previous prime is 9968809. The next prime is 9968843. The reversal of 9968839 is 9388699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9968839 - 2¹¹ = 9966791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9968809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984419 + 4984420.

It is an arithmetic number, because the mean of its divisors is an integer number (4984420).

Almost surely, 2^9968839 is an apocalyptic number.

9968839 is a deficient number, since it is larger than the sum of its proper divisors (1).

9968839 is an equidigital number, since it uses as much as digits as its factorization.

9968839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 52.

The square root of 9968839 is about 3157.3468292223. The cubic root of 9968839 is about 215.2194550272.

The spelling of 9968839 in words is "nine million, nine hundred sixty-eight thousand, eight hundred thirty-nine".