3421312217 has 2 divisors, whose sum is σ = 3421312218. Its totient is φ = 3421312216.

The previous prime is 3421312177. The next prime is 3421312283. The reversal of 3421312217 is 7122131243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2107177216 + 1314135001 = 45904^2 + 36251^2 .

It is an emirp because it is prime and its reverse (7122131243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3421312217 - 2²⁶ = 3354203353 is a prime.

It is not a weakly prime, because it can be changed into another prime (3421312417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710656108 + 1710656109.

It is an arithmetic number, because the mean of its divisors is an integer number (1710656109).

Almost surely, 2^3421312217 is an apocalyptic number.

It is an amenable number.

3421312217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421312217 is an equidigital number, since it uses as much as digits as its factorization.

3421312217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 3421312217 is about 58491.9842115140. The cubic root of 3421312217 is about 1506.8299234158.

The spelling of 3421312217 in words is "three billion, four hundred twenty-one million, three hundred twelve thousand, two hundred seventeen".