3427215217 has 2 divisors, whose sum is σ = 3427215218. Its totient is φ = 3427215216.

The previous prime is 3427215179. The next prime is 3427215241. The reversal of 3427215217 is 7125127243.

3427215217 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., 3022360576 + 404854641 = 54976^2 + 20121^2 .

It is a cyclic number.

It is not a de Polignac number, because 3427215217 - 2⁷ = 3427215089 is a prime.

It is not a weakly prime, because it can be changed into another prime (3427215287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1713607608 + 1713607609.

It is an arithmetic number, because the mean of its divisors is an integer number (1713607609).

Almost surely, 2^3427215217 is an apocalyptic number.

It is an amenable number.

3427215217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3427215217 is an equidigital number, since it uses as much as digits as its factorization.

3427215217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 3427215217 is about 58542.4223704486. The cubic root of 3427215217 is about 1507.6960342119.

The spelling of 3427215217 in words is "three billion, four hundred twenty-seven million, two hundred fifteen thousand, two hundred seventeen".