9966224 has 10 divisors (see below), whose sum is σ = 19309590. Its totient is φ = 4983104.

The previous prime is 9966223. The next prime is 9966251. The reversal of 9966224 is 4226699.

It can be written as a sum of positive squares in only one way, i.e., 7507600 + 2458624 = 2740^2 + 1568^2 .

It is not an unprimeable number, because it can be changed into a prime (9966223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311429 + ... + 311460.

It is an arithmetic number, because the mean of its divisors is an integer number (1930959).

Almost surely, 2^9966224 is an apocalyptic number.

It is an amenable number.

9966224 is a deficient number, since it is larger than the sum of its proper divisors (9343366).

9966224 is a wasteful number, since it uses less digits than its factorization.

9966224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622897 (or 622891 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 9966224 is about 3156.9326885444. The cubic root of 9966224 is about 215.2006347784.

The spelling of 9966224 in words is "nine million, nine hundred sixty-six thousand, two hundred twenty-four".