3986513 has 2 divisors, whose sum is σ = 3986514. Its totient is φ = 3986512.

The previous prime is 3986503. The next prime is 3986519. The reversal of 3986513 is 3156893.

3986513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2879809 + 1106704 = 1697^2 + 1052^2 .

It is a cyclic number.

It is not a de Polignac number, because 3986513 - 2⁴ = 3986497 is a prime.

It is not a weakly prime, because it can be changed into another prime (3986519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993256 + 1993257.

It is an arithmetic number, because the mean of its divisors is an integer number (1993257).

Almost surely, 2^3986513 is an apocalyptic number.

It is an amenable number.

3986513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986513 is an equidigital number, since it uses as much as digits as its factorization.

3986513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 3986513 is about 1996.6254030238. The cubic root of 3986513 is about 158.5614936518.

The spelling of 3986513 in words is "three million, nine hundred eighty-six thousand, five hundred thirteen".