9000217 has 2 divisors, whose sum is σ = 9000218. Its totient is φ = 9000216.

The previous prime is 9000209. The next prime is 9000223. The reversal of 9000217 is 7120009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8856576 + 143641 = 2976^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 9000217 - 2³ = 9000209 is a prime.

It is a Chen prime.

9000217 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9000194 and 9000203.

It is not a weakly prime, because it can be changed into another prime (9000317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500108 + 4500109.

It is an arithmetic number, because the mean of its divisors is an integer number (4500109).

Almost surely, 2^9000217 is an apocalyptic number.

It is an amenable number.

9000217 is a deficient number, since it is larger than the sum of its proper divisors (1).

9000217 is an equidigital number, since it uses as much as digits as its factorization.

9000217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 9000217 is about 3000.0361664487. The cubic root of 9000217 is about 208.0100540628.

The spelling of 9000217 in words is "nine million, two hundred seventeen", and thus it is an aban number.