4065686 has 16 divisors (see below), whose sum is σ = 6500736. Its totient is φ = 1900416.

The previous prime is 4065667. The next prime is 4065697. The reversal of 4065686 is 6865604.

4065686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6395 + ... + 7001.

It is an arithmetic number, because the mean of its divisors is an integer number (406296).

Almost surely, 2^4065686 is an apocalyptic number.

4065686 is a deficient number, since it is larger than the sum of its proper divisors (2435050).

4065686 is a wasteful number, since it uses less digits than its factorization.

4065686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 4065686 is about 2016.3546315071. The cubic root of 4065686 is about 159.6043086925.

The spelling of 4065686 in words is "four million, sixty-five thousand, six hundred eighty-six".