3893986 has 12 divisors (see below), whose sum is σ = 6205698. Its totient is φ = 1832192.

The previous prime is 3893983. The next prime is 3894001. The reversal of 3893986 is 6893983.

It can be written as a sum of positive squares in 3 ways, for example, as 3861225 + 32761 = 1965^2 + 181^2 .

It is not an unprimeable number, because it can be changed into a prime (3893983) 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 in 5 ways as a sum of consecutive naturals, for example, 2791 + ... + 3946.

Almost surely, 2^3893986 is an apocalyptic number.

3893986 is a deficient number, since it is larger than the sum of its proper divisors (2311712).

3893986 is a wasteful number, since it uses less digits than its factorization.

3893986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6773 (or 6756 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 3893986 is about 1973.3185247192. The cubic root of 3893986 is about 157.3251406168.

The spelling of 3893986 in words is "three million, eight hundred ninety-three thousand, nine hundred eighty-six".