3986635 has 8 divisors (see below), whose sum is σ = 4900896. Its totient is φ = 3111360.

The previous prime is 3986623. The next prime is 3986641. The reversal of 3986635 is 5366893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3986635 - 2¹¹ = 3984587 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9519 + ... + 9928.

It is an arithmetic number, because the mean of its divisors is an integer number (612612).

Almost surely, 2^3986635 is an apocalyptic number.

3986635 is a deficient number, since it is larger than the sum of its proper divisors (914261).

3986635 is a wasteful number, since it uses less digits than its factorization.

3986635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19493.

The product of its digits is 116640, while the sum is 40.

The square root of 3986635 is about 1996.6559543397. The cubic root of 3986635 is about 158.5631111309.

The spelling of 3986635 in words is "three million, nine hundred eighty-six thousand, six hundred thirty-five".