6481217 has 2 divisors, whose sum is σ = 6481218. Its totient is φ = 6481216.

The previous prime is 6481207. The next prime is 6481219. The reversal of 6481217 is 7121846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3519376 + 2961841 = 1876^2 + 1721^2 .

It is a cyclic number.

It is not a de Polignac number, because 6481217 - 2¹⁰ = 6480193 is a prime.

Together with 6481219, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6481217.

It is not a weakly prime, because it can be changed into another prime (6481219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240608 + 3240609.

It is an arithmetic number, because the mean of its divisors is an integer number (3240609).

Almost surely, 2^6481217 is an apocalyptic number.

It is an amenable number.

6481217 is a deficient number, since it is larger than the sum of its proper divisors (1).

6481217 is an equidigital number, since it uses as much as digits as its factorization.

6481217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 29.

The square root of 6481217 is about 2545.8234424249. The cubic root of 6481217 is about 186.4456209290.

The spelling of 6481217 in words is "six million, four hundred eighty-one thousand, two hundred seventeen".