3965918 has 16 divisors (see below), whose sum is σ = 6583680. Its totient is φ = 1776600.

The previous prime is 3965911. The next prime is 3965939. The reversal of 3965918 is 8195693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965911) 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 7 ways as a sum of consecutive naturals, for example, 293 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (411480).

Almost surely, 2^3965918 is an apocalyptic number.

3965918 is a deficient number, since it is larger than the sum of its proper divisors (2617762).

3965918 is a wasteful number, since it uses less digits than its factorization.

3965918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623.

The product of its digits is 58320, while the sum is 41.

The square root of 3965918 is about 1991.4612725333. The cubic root of 3965918 is about 158.2879702609.

The spelling of 3965918 in words is "three million, nine hundred sixty-five thousand, nine hundred eighteen".