3663217 has 2 divisors, whose sum is σ = 3663218. Its totient is φ = 3663216.

The previous prime is 3663203. The next prime is 3663241. The reversal of 3663217 is 7123663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1962801 + 1700416 = 1401^2 + 1304^2 .

It is a cyclic number.

It is not a de Polignac number, because 3663217 - 2⁷ = 3663089 is a prime.

It is not a weakly prime, because it can be changed into another prime (3663277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1831608 + 1831609.

It is an arithmetic number, because the mean of its divisors is an integer number (1831609).

Almost surely, 2^3663217 is an apocalyptic number.

It is an amenable number.

3663217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3663217 is an equidigital number, since it uses as much as digits as its factorization.

3663217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 28.

The square root of 3663217 is about 1913.9532387182. The cubic root of 3663217 is about 154.1537930651.

The spelling of 3663217 in words is "three million, six hundred sixty-three thousand, two hundred seventeen".