3986636 has 24 divisors (see below), whose sum is σ = 7711200. Its totient is φ = 1793792.

The previous prime is 3986623. The next prime is 3986641. The reversal of 3986636 is 6366893.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 3986593 and 3986602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290 + ... + 2838.

It is an arithmetic number, because the mean of its divisors is an integer number (321300).

Almost surely, 2^3986636 is an apocalyptic number.

It is an amenable number.

3986636 is a deficient number, since it is larger than the sum of its proper divisors (3724564).

3986636 is a wasteful number, since it uses less digits than its factorization.

3986636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593 (or 2591 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 3986636 is about 1996.6562047583. The cubic root of 3986636 is about 158.5631243888.

The spelling of 3986636 in words is "three million, nine hundred eighty-six thousand, six hundred thirty-six".