3681726 has 16 divisors (see below), whose sum is σ = 7382928. Its totient is φ = 1224000.

The previous prime is 3681719. The next prime is 3681731. The reversal of 3681726 is 6271863.

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, 3096 + ... + 4116.

It is an arithmetic number, because the mean of its divisors is an integer number (461433).

Almost surely, 2^3681726 is an apocalyptic number.

3681726 is an abundant number, since it is smaller than the sum of its proper divisors (3701202).

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

3681726 is a wasteful number, since it uses less digits than its factorization.

3681726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627.

The product of its digits is 12096, while the sum is 33.

The square root of 3681726 is about 1918.7824264361. The cubic root of 3681726 is about 154.4129860573.

The spelling of 3681726 in words is "three million, six hundred eighty-one thousand, seven hundred twenty-six".