9906917 has 2 divisors, whose sum is σ = 9906918. Its totient is φ = 9906916.

The previous prime is 9906877. The next prime is 9906929. The reversal of 9906917 is 7196099.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5387041 + 4519876 = 2321^2 + 2126^2 .

It is an emirp because it is prime and its reverse (7196099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9906917 - 2²² = 5712613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9906517) 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, 4953458 + 4953459.

It is an arithmetic number, because the mean of its divisors is an integer number (4953459).

Almost surely, 2^9906917 is an apocalyptic number.

It is an amenable number.

9906917 is a deficient number, since it is larger than the sum of its proper divisors (1).

9906917 is an equidigital number, since it uses as much as digits as its factorization.

9906917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 9906917 is about 3147.5255360362. The cubic root of 9906917 is about 214.7729132872.

The spelling of 9906917 in words is "nine million, nine hundred six thousand, nine hundred seventeen".