3117217 has 2 divisors, whose sum is σ = 3117218. Its totient is φ = 3117216.

The previous prime is 3117211. The next prime is 3117221. The reversal of 3117217 is 7127113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1679616 + 1437601 = 1296^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 3117217 - 2³ = 3117209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3117211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558608 + 1558609.

It is an arithmetic number, because the mean of its divisors is an integer number (1558609).

Almost surely, 2^3117217 is an apocalyptic number.

It is an amenable number.

3117217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3117217 is an equidigital number, since it uses as much as digits as its factorization.

3117217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294, while the sum is 22.

The square root of 3117217 is about 1765.5642157679. The cubic root of 3117217 is about 146.0794119809.

The spelling of 3117217 in words is "three million, one hundred seventeen thousand, two hundred seventeen".