9947223 has 48 divisors (see below), whose sum is σ = 17297280. Its totient is φ = 5428800.

The previous prime is 9947219. The next prime is 9947237. The reversal of 9947223 is 3227499.

It is not a de Polignac number, because 9947223 - 2² = 9947219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9947243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75868 + ... + 75998.

It is an arithmetic number, because the mean of its divisors is an integer number (360360).

Almost surely, 2^9947223 is an apocalyptic number.

9947223 is a deficient number, since it is larger than the sum of its proper divisors (7350057).

9947223 is a wasteful number, since it uses less digits than its factorization.

9947223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 217 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 9947223 is about 3153.9218443075. The cubic root of 9947223 is about 215.0637849327.

The spelling of 9947223 in words is "nine million, nine hundred forty-seven thousand, two hundred twenty-three".