4215317 has 2 divisors, whose sum is σ = 4215318. Its totient is φ = 4215316.

The previous prime is 4215301. The next prime is 4215319. The reversal of 4215317 is 7135124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2390116 + 1825201 = 1546^2 + 1351^2 .

It is a cyclic number.

It is not a de Polignac number, because 4215317 - 2⁴ = 4215301 is a prime.

Together with 4215319, 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 = 4215292 and 4215301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4215319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2107658 + 2107659.

It is an arithmetic number, because the mean of its divisors is an integer number (2107659).

Almost surely, 2^4215317 is an apocalyptic number.

It is an amenable number.

4215317 is a deficient number, since it is larger than the sum of its proper divisors (1).

4215317 is an equidigital number, since it uses as much as digits as its factorization.

4215317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 23.

The square root of 4215317 is about 2053.1237176556. The cubic root of 4215317 is about 161.5387606774.

The spelling of 4215317 in words is "four million, two hundred fifteen thousand, three hundred seventeen".