9217042217 has 8 divisors (see below), whose sum is σ = 9434389536. Its totient is φ = 8999831232.

The previous prime is 9217042199. The next prime is 9217042229. The reversal of 9217042217 is 7122407129.

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

It is a cyclic number.

It is not a de Polignac number, because 9217042217 - 2⁸ = 9217041961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9217042267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109793 + ... + 174609.

It is an arithmetic number, because the mean of its divisors is an integer number (1179298692).

Almost surely, 2^9217042217 is an apocalyptic number.

It is an amenable number.

9217042217 is a deficient number, since it is larger than the sum of its proper divisors (217347319).

9217042217 is a wasteful number, since it uses less digits than its factorization.

9217042217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68167.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 9217042217 is about 96005.4280600842. The cubic root of 9217042217 is about 2096.6721454099.

The spelling of 9217042217 in words is "nine billion, two hundred seventeen million, forty-two thousand, two hundred seventeen".