3984217 has 2 divisors, whose sum is σ = 3984218. Its totient is φ = 3984216.

The previous prime is 3984199. The next prime is 3984229. The reversal of 3984217 is 7124893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3936256 + 47961 = 1984^2 + 219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3984217 is a prime.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (3984287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992108 + 1992109.

It is an arithmetic number, because the mean of its divisors is an integer number (1992109).

Almost surely, 2^3984217 is an apocalyptic number.

It is an amenable number.

3984217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984217 is an equidigital number, since it uses as much as digits as its factorization.

3984217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 3984217 is about 1996.0503500664. The cubic root of 3984217 is about 158.5310470682.

The spelling of 3984217 in words is "three million, nine hundred eighty-four thousand, two hundred seventeen".