3986824217 has 2 divisors, whose sum is σ = 3986824218. Its totient is φ = 3986824216.

The previous prime is 3986824201. The next prime is 3986824267. The reversal of 3986824217 is 7124286893.

It is an a-pointer prime, because the next prime (3986824267) can be obtained adding 3986824217 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3150689161 + 836135056 = 56131^2 + 28916^2 .

It is an emirp because it is prime and its reverse (7124286893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3986824217 - 2⁴ = 3986824201 is a prime.

It is not a weakly prime, because it can be changed into another prime (3986824267) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993412108 + 1993412109.

It is an arithmetic number, because the mean of its divisors is an integer number (1993412109).

Almost surely, 2^3986824217 is an apocalyptic number.

It is an amenable number.

3986824217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986824217 is an equidigital number, since it uses as much as digits as its factorization.

3986824217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 50.

The square root of 3986824217 is about 63141.3035738098. The cubic root of 3986824217 is about 1585.6561970949.

The spelling of 3986824217 in words is "three billion, nine hundred eighty-six million, eight hundred twenty-four thousand, two hundred seventeen".