9668909 has 2 divisors, whose sum is σ = 9668910. Its totient is φ = 9668908.

The previous prime is 9668899. The next prime is 9668921. The reversal of 9668909 is 9098669.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9320809 + 348100 = 3053^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 9668909 - 2¹² = 9664813 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 (9668959) 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, 4834454 + 4834455.

It is an arithmetic number, because the mean of its divisors is an integer number (4834455).

Almost surely, 2^9668909 is an apocalyptic number.

It is an amenable number.

9668909 is a deficient number, since it is larger than the sum of its proper divisors (1).

9668909 is an equidigital number, since it uses as much as digits as its factorization.

9668909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 9668909 is about 3109.4869351711. The cubic root of 9668909 is about 213.0390209686.

The spelling of 9668909 in words is "nine million, six hundred sixty-eight thousand, nine hundred nine".