344112217 has 2 divisors, whose sum is σ = 344112218. Its totient is φ = 344112216.

The previous prime is 344112179. The next prime is 344112257. The reversal of 344112217 is 712211443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333281536 + 10830681 = 18256^2 + 3291^2 .

It is an emirp because it is prime and its reverse (712211443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344112217 - 2⁷ = 344112089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 344112191 and 344112200.

It is not a weakly prime, because it can be changed into another prime (344112257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172056108 + 172056109.

It is an arithmetic number, because the mean of its divisors is an integer number (172056109).

Almost surely, 2^344112217 is an apocalyptic number.

It is an amenable number.

344112217 is a deficient number, since it is larger than the sum of its proper divisors (1).

344112217 is an equidigital number, since it uses as much as digits as its factorization.

344112217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 25.

The square root of 344112217 is about 18550.2619118976. The cubic root of 344112217 is about 700.7557938756.

The spelling of 344112217 in words is "three hundred forty-four million, one hundred twelve thousand, two hundred seventeen".