2217287 has 2 divisors, whose sum is σ = 2217288. Its totient is φ = 2217286.

The previous prime is 2217283. The next prime is 2217301. The reversal of 2217287 is 7827122.

2217287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2217287 - 2² = 2217283 is a prime.

It is a d-powerful number, because it can be written as 2² + 2⁴ + 1 + 7⁴ + 2²¹ + 8² + 7⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108643 + 1108644.

It is an arithmetic number, because the mean of its divisors is an integer number (1108644).

2^2217287 is an apocalyptic number.

2217287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217287 is an equidigital number, since it uses as much as digits as its factorization.

2217287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 29.

The square root of 2217287 is about 1489.0557410655. The cubic root of 2217287 is about 130.3989127276.

The spelling of 2217287 in words is "two million, two hundred seventeen thousand, two hundred eighty-seven".