4011685 has 16 divisors (see below), whose sum is σ = 5043456. Its totient is φ = 3060288.

The previous prime is 4011673. The next prime is 4011701. The reversal of 4011685 is 5861104.

It is a cyclic number.

It is not a de Polignac number, because 4011685 - 2⁵ = 4011653 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 9907 + ... + 10303.

It is an arithmetic number, because the mean of its divisors is an integer number (315216).

Almost surely, 2^4011685 is an apocalyptic number.

It is an amenable number.

4011685 is a deficient number, since it is larger than the sum of its proper divisors (1031771).

4011685 is a wasteful number, since it uses less digits than its factorization.

4011685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 4011685 is about 2002.9191196851. The cubic root of 4011685 is about 158.8945281024.

Adding to 4011685 its reverse (5861104), we get a palindrome (9872789).

The spelling of 4011685 in words is "four million, eleven thousand, six hundred eighty-five".