2217967 has 2 divisors, whose sum is σ = 2217968. Its totient is φ = 2217966.

The previous prime is 2217947. The next prime is 2217991. The reversal of 2217967 is 7697122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2217967 - 2¹⁵ = 2185199 is a prime.

It is a super-2 number, since 2×2217967² = 9838755226178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108983 + 1108984.

It is an arithmetic number, because the mean of its divisors is an integer number (1108984).

2^2217967 is an apocalyptic number.

2217967 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217967 is an equidigital number, since it uses as much as digits as its factorization.

2217967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 34.

The square root of 2217967 is about 1489.2840561827. The cubic root of 2217967 is about 130.4122416588.

The spelling of 2217967 in words is "two million, two hundred seventeen thousand, nine hundred sixty-seven".