3986311 has 16 divisors (see below), whose sum is σ = 4795200. Its totient is φ = 3241728.

The previous prime is 3986309. The next prime is 3986329. The reversal of 3986311 is 1136893.

It is not a de Polignac number, because 3986311 - 2¹ = 3986309 is a prime.

It is a Duffinian number.

3986311 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986351) 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 15 ways as a sum of consecutive naturals, for example, 14685 + ... + 14953.

It is an arithmetic number, because the mean of its divisors is an integer number (299700).

Almost surely, 2^3986311 is an apocalyptic number.

3986311 is a deficient number, since it is larger than the sum of its proper divisors (808889).

3986311 is a wasteful number, since it uses less digits than its factorization.

3986311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378.

The product of its digits is 3888, while the sum is 31.

The square root of 3986311 is about 1996.5748170304. The cubic root of 3986311 is about 158.5588154580.

The spelling of 3986311 in words is "three million, nine hundred eighty-six thousand, three hundred eleven".