34021217 has 2 divisors, whose sum is σ = 34021218. Its totient is φ = 34021216.

The previous prime is 34021187. The next prime is 34021219. The reversal of 34021217 is 71212043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27447121 + 6574096 = 5239^2 + 2564^2 .

It is a cyclic number.

It is not a de Polignac number, because 34021217 - 2¹⁰ = 34020193 is a prime.

It is a super-2 number, since 2×34021217² = 2314886412322178, which contains 22 as substring.

Together with 34021219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34021219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010608 + 17010609.

It is an arithmetic number, because the mean of its divisors is an integer number (17010609).

Almost surely, 2^34021217 is an apocalyptic number.

It is an amenable number.

34021217 is a deficient number, since it is larger than the sum of its proper divisors (1).

34021217 is an equidigital number, since it uses as much as digits as its factorization.

34021217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 34021217 is about 5832.7709538435. The cubic root of 34021217 is about 324.0285532170.

The spelling of 34021217 in words is "thirty-four million, twenty-one thousand, two hundred seventeen".