234210217 has 2 divisors, whose sum is σ = 234210218. Its totient is φ = 234210216.

The previous prime is 234210209. The next prime is 234210247. The reversal of 234210217 is 712012432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227738281 + 6471936 = 15091^2 + 2544^2 .

It is a cyclic number.

It is not a de Polignac number, because 234210217 - 2³ = 234210209 is a prime.

It is not a weakly prime, because it can be changed into another prime (234210247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117105108 + 117105109.

It is an arithmetic number, because the mean of its divisors is an integer number (117105109).

Almost surely, 2^234210217 is an apocalyptic number.

It is an amenable number.

234210217 is a deficient number, since it is larger than the sum of its proper divisors (1).

234210217 is an equidigital number, since it uses as much as digits as its factorization.

234210217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 234210217 is about 15303.9281558690. The cubic root of 234210217 is about 616.4084905463.

Adding to 234210217 its reverse (712012432), we get a palindrome (946222649).

The spelling of 234210217 in words is "two hundred thirty-four million, two hundred ten thousand, two hundred seventeen".