4131686 has 16 divisors (see below), whose sum is σ = 6707904. Its totient is φ = 1897344.

The previous prime is 4131667. The next prime is 4131707. The reversal of 4131686 is 6861314.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 9326 + ... + 9758.

It is an arithmetic number, because the mean of its divisors is an integer number (419244).

Almost surely, 2^4131686 is an apocalyptic number.

4131686 is a deficient number, since it is larger than the sum of its proper divisors (2576218).

4131686 is a wasteful number, since it uses less digits than its factorization.

4131686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815.

The product of its digits is 3456, while the sum is 29.

The square root of 4131686 is about 2032.6549141455. The cubic root of 4131686 is about 160.4633185130.

The spelling of 4131686 in words is "four million, one hundred thirty-one thousand, six hundred eighty-six".