9966446 has 8 divisors (see below), whose sum is σ = 17085360. Its totient is φ = 4271328.

The previous prime is 9966433. The next prime is 9966449. The reversal of 9966446 is 6446699.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9966397 and 9966406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9966449) 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 in 3 ways as a sum of consecutive naturals, for example, 355931 + ... + 355958.

It is an arithmetic number, because the mean of its divisors is an integer number (2135670).

Almost surely, 2^9966446 is an apocalyptic number.

9966446 is a deficient number, since it is larger than the sum of its proper divisors (7118914).

9966446 is a wasteful number, since it uses less digits than its factorization.

9966446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711898.

The product of its digits is 279936, while the sum is 44.

The square root of 9966446 is about 3156.9678490602. The cubic root of 9966446 is about 215.2022326482.

The spelling of 9966446 in words is "nine million, nine hundred sixty-six thousand, four hundred forty-six".