3718686 has 16 divisors (see below), whose sum is σ = 7761024. Its totient is φ = 1185624.

The previous prime is 3718681. The next prime is 3718739. The reversal of 3718686 is 6868173.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3718681) 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, 13336 + ... + 13611.

It is an arithmetic number, because the mean of its divisors is an integer number (485064).

Almost surely, 2^3718686 is an apocalyptic number.

3718686 is an abundant number, since it is smaller than the sum of its proper divisors (4042338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3718686 is a wasteful number, since it uses less digits than its factorization.

3718686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26975.

The product of its digits is 48384, while the sum is 39.

The square root of 3718686 is about 1928.3894834810. The cubic root of 3718686 is about 154.9279720839.

The spelling of 3718686 in words is "three million, seven hundred eighteen thousand, six hundred eighty-six".