3986447393 has 2 divisors, whose sum is σ = 3986447394. Its totient is φ = 3986447392.

The previous prime is 3986447389. The next prime is 3986447407. The reversal of 3986447393 is 3937446893.

3986447393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3141266209 + 845181184 = 56047^2 + 29072^2 .

It is a cyclic number.

It is not a de Polignac number, because 3986447393 - 2² = 3986447389 is a prime.

It is not a weakly prime, because it can be changed into another prime (3986447093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993223696 + 1993223697.

It is an arithmetic number, because the mean of its divisors is an integer number (1993223697).

Almost surely, 2^3986447393 is an apocalyptic number.

It is an amenable number.

3986447393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986447393 is an equidigital number, since it uses as much as digits as its factorization.

3986447393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11757312, while the sum is 56.

The square root of 3986447393 is about 63138.3195294268. The cubic root of 3986447393 is about 1585.6062381882.

The spelling of 3986447393 in words is "three billion, nine hundred eighty-six million, four hundred forty-seven thousand, three hundred ninety-three".