9943217 has 4 divisors (see below), whose sum is σ = 10010100. Its totient is φ = 9876336.

The previous prime is 9943207. The next prime is 9943237. The reversal of 9943217 is 7123499.

9943217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6195121 + 3748096 = 2489^2 + 1936^2 .

It is a cyclic number.

It is not a de Polignac number, because 9943217 - 2²² = 5748913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9943207) 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 3 ways as a sum of consecutive naturals, for example, 33218 + ... + 33515.

It is an arithmetic number, because the mean of its divisors is an integer number (2502525).

Almost surely, 2^9943217 is an apocalyptic number.

It is an amenable number.

9943217 is a deficient number, since it is larger than the sum of its proper divisors (66883).

9943217 is a wasteful number, since it uses less digits than its factorization.

9943217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66882.

The product of its digits is 13608, while the sum is 35.

The square root of 9943217 is about 3153.2866980343. The cubic root of 9943217 is about 215.0349105020.

The spelling of 9943217 in words is "nine million, nine hundred forty-three thousand, two hundred seventeen".