343674217 has 2 divisors, whose sum is σ = 343674218. Its totient is φ = 343674216.

The previous prime is 343674209. The next prime is 343674271. The reversal of 343674217 is 712476343.

Together with next prime (343674271) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332843536 + 10830681 = 18244^2 + 3291^2 .

It is a cyclic number.

It is not a de Polignac number, because 343674217 - 2³ = 343674209 is a prime.

It is a super-2 number, since 2×343674217² = 236223934861126178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343674517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171837108 + 171837109.

It is an arithmetic number, because the mean of its divisors is an integer number (171837109).

Almost surely, 2^343674217 is an apocalyptic number.

It is an amenable number.

343674217 is a deficient number, since it is larger than the sum of its proper divisors (1).

343674217 is an equidigital number, since it uses as much as digits as its factorization.

343674217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 37.

The square root of 343674217 is about 18538.4523895605. The cubic root of 343674217 is about 700.4583508328.

The spelling of 343674217 in words is "three hundred forty-three million, six hundred seventy-four thousand, two hundred seventeen".