2217349 has 2 divisors, whose sum is σ = 2217350. Its totient is φ = 2217348.

The previous prime is 2217343. The next prime is 2217359. The reversal of 2217349 is 9437122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2196324 + 21025 = 1482^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217349 - 2⁵ = 2217317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108674 + 1108675.

It is an arithmetic number, because the mean of its divisors is an integer number (1108675).

2^2217349 is an apocalyptic number.

It is an amenable number.

2217349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217349 is an equidigital number, since it uses as much as digits as its factorization.

2217349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 2217349 is about 1489.0765594824. The cubic root of 2217349 is about 130.4001281254.

It can be divided in two parts, 22173 and 49, that added together give a palindrome (22222).

The spelling of 2217349 in words is "two million, two hundred seventeen thousand, three hundred forty-nine".