9646691 has 2 divisors, whose sum is σ = 9646692. Its totient is φ = 9646690.

The previous prime is 9646649. The next prime is 9646711. The reversal of 9646691 is 1966469.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9646691 - 2¹⁰ = 9645667 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9646631) 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, 4823345 + 4823346.

It is an arithmetic number, because the mean of its divisors is an integer number (4823346).

Almost surely, 2^9646691 is an apocalyptic number.

9646691 is a deficient number, since it is larger than the sum of its proper divisors (1).

9646691 is an equidigital number, since it uses as much as digits as its factorization.

9646691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 9646691 is about 3105.9122653417. The cubic root of 9646691 is about 212.8757163971.

The spelling of 9646691 in words is "nine million, six hundred forty-six thousand, six hundred ninety-one".