9964909 has 2 divisors, whose sum is σ = 9964910. Its totient is φ = 9964908.

The previous prime is 9964883. The next prime is 9964931. The reversal of 9964909 is 9094699.

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., 5221225 + 4743684 = 2285^2 + 2178^2 .

It is a cyclic number.

It is not a de Polignac number, because 9964909 - 2⁷ = 9964781 is a prime.

It is a super-2 number, since 2×9964909² = 198598822756562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9964939) 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, 4982454 + 4982455.

It is an arithmetic number, because the mean of its divisors is an integer number (4982455).

Almost surely, 2^9964909 is an apocalyptic number.

It is an amenable number.

9964909 is a deficient number, since it is larger than the sum of its proper divisors (1).

9964909 is an equidigital number, since it uses as much as digits as its factorization.

9964909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 9964909 is about 3156.7244098907. The cubic root of 9964909 is about 215.1911694322.

The spelling of 9964909 in words is "nine million, nine hundred sixty-four thousand, nine hundred nine".