9999347 has 2 divisors, whose sum is σ = 9999348.
Its totient is φ = 9999346.
The previous prime is 9999337. The next prime is 9999397. The reversal of 9999347 is 7439999.
It is an a-pointer prime, because the next prime (9999397) can be obtained adding 9999347 to its sum of digits (50).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 9999347 - 210 = 9998323 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 9999295 and 9999304.
It is not a weakly prime, because it can be changed into another prime (9999317) 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, 4999673 + 4999674.
It is an arithmetic number, because the mean of its divisors is an integer number (4999674).
Almost surely, 29999347 is an apocalyptic number.
9999347 is a deficient number, since it is larger than the sum of its proper divisors (1).
9999347 is an equidigital number, since it uses as much as digits as its factorization.
9999347 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 551124, while the sum is 50.
The square root of 9999347 is about 3162.1744101172.
The cubic root of 9999347 is about 215.4387794149.
The spelling of 9999347 in words is "nine million, nine hundred ninety-nine thousand, three hundred forty-seven".