9996859 has 2 divisors, whose sum is σ = 9996860. Its totient is φ = 9996858.

The previous prime is 9996829. The next prime is 9996887. The reversal of 9996859 is 9586999.

It is a strong prime.

It is an emirp because it is prime and its reverse (9586999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9996859 - 2¹⁷ = 9865787 is a prime.

It is a super-3 number, since 3×9996859³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (9996809) 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, 4998429 + 4998430.

It is an arithmetic number, because the mean of its divisors is an integer number (4998430).

Almost surely, 2^9996859 is an apocalyptic number.

9996859 is a deficient number, since it is larger than the sum of its proper divisors (1).

9996859 is an equidigital number, since it uses as much as digits as its factorization.

9996859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 55.

The square root of 9996859 is about 3161.7809854574. The cubic root of 9996859 is about 215.4209097099.

The spelling of 9996859 in words is "nine million, nine hundred ninety-six thousand, eight hundred fifty-nine".