9946609 has 2 divisors, whose sum is σ = 9946610. Its totient is φ = 9946608.

The previous prime is 9946597. The next prime is 9946639. The reversal of 9946609 is 9066499.

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., 5536609 + 4410000 = 2353^2 + 2100^2 .

It is a cyclic number.

It is not a de Polignac number, because 9946609 - 2¹³ = 9938417 is a prime.

It is not a weakly prime, because it can be changed into another prime (9946639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4973304 + 4973305.

It is an arithmetic number, because the mean of its divisors is an integer number (4973305).

Almost surely, 2^9946609 is an apocalyptic number.

It is an amenable number.

9946609 is a deficient number, since it is larger than the sum of its proper divisors (1).

9946609 is an equidigital number, since it uses as much as digits as its factorization.

9946609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 9946609 is about 3153.8245036780. The cubic root of 9946609 is about 215.0593598491.

The spelling of 9946609 in words is "nine million, nine hundred forty-six thousand, six hundred nine".