3449217217 has 2 divisors, whose sum is σ = 3449217218. Its totient is φ = 3449217216.

The previous prime is 3449217199. The next prime is 3449217253. The reversal of 3449217217 is 7127129443.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2334725761 + 1114491456 = 48319^2 + 33384^2 .

It is a cyclic number.

It is not a de Polignac number, because 3449217217 - 2⁷ = 3449217089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3449217217.

It is not a weakly prime, because it can be changed into another prime (3449217917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1724608608 + 1724608609.

It is an arithmetic number, because the mean of its divisors is an integer number (1724608609).

Almost surely, 2^3449217217 is an apocalyptic number.

It is an amenable number.

3449217217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3449217217 is an equidigital number, since it uses as much as digits as its factorization.

3449217217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 3449217217 is about 58730.0367529257. The cubic root of 3449217217 is about 1510.9155182238.

The spelling of 3449217217 in words is "three billion, four hundred forty-nine million, two hundred seventeen thousand, two hundred seventeen".