9012217 has 2 divisors, whose sum is σ = 9012218. Its totient is φ = 9012216.

The previous prime is 9012187. The next prime is 9012239. The reversal of 9012217 is 7122109.

9012217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (9012239) can be obtained adding 9012217 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5875776 + 3136441 = 2424^2 + 1771^2 .

It is an emirp because it is prime and its reverse (7122109) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9012217 is a prime.

It is not a weakly prime, because it can be changed into another prime (9012247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4506108 + 4506109.

It is an arithmetic number, because the mean of its divisors is an integer number (4506109).

Almost surely, 2^9012217 is an apocalyptic number.

It is an amenable number.

9012217 is a deficient number, since it is larger than the sum of its proper divisors (1).

9012217 is an equidigital number, since it uses as much as digits as its factorization.

9012217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 9012217 is about 3002.0354761395. The cubic root of 9012217 is about 208.1024596907.

It can be divided in two parts, 9012 and 217, that added together give a palindrome (9229).

The spelling of 9012217 in words is "nine million, twelve thousand, two hundred seventeen".