3400217 has 2 divisors, whose sum is σ = 3400218. Its totient is φ = 3400216.

The previous prime is 3400213. The next prime is 3400219. The reversal of 3400217 is 7120043.

It is a happy number.

3400217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2785561 + 614656 = 1669^2 + 784^2 .

It is a cyclic number.

It is not a de Polignac number, because 3400217 - 2² = 3400213 is a prime.

It is a super-2 number, since 2×3400217² = 23122951294178, which contains 22 as substring.

Together with 3400219, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3400195 and 3400204.

It is not a weakly prime, because it can be changed into another prime (3400211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1700108 + 1700109.

It is an arithmetic number, because the mean of its divisors is an integer number (1700109).

Almost surely, 2^3400217 is an apocalyptic number.

It is an amenable number.

3400217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3400217 is an equidigital number, since it uses as much as digits as its factorization.

3400217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 3400217 is about 1843.9677329064. The cubic root of 3400217 is about 150.3726585890.

The spelling of 3400217 in words is "three million, four hundred thousand, two hundred seventeen".