3716681 has 2 divisors, whose sum is σ = 3716682. Its totient is φ = 3716680.

The previous prime is 3716677. The next prime is 3716701. The reversal of 3716681 is 1866173.

3716681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 1585081 = 1460^2 + 1259^2 .

It is a cyclic number.

It is not a de Polignac number, because 3716681 - 2² = 3716677 is a prime.

It is a super-2 number, since 2×3716681² = 27627435311522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3716641) by changing a digit.

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 as a sum of consecutive naturals, namely, 1858340 + 1858341.

It is an arithmetic number, because the mean of its divisors is an integer number (1858341).

Almost surely, 2^3716681 is an apocalyptic number.

It is an amenable number.

3716681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3716681 is an equidigital number, since it uses as much as digits as its factorization.

3716681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 32.

The square root of 3716681 is about 1927.8695495287. The cubic root of 3716681 is about 154.9001229611.

It can be divided in two parts, 371 and 6681, that multiplied together give a triangular number (2478651 = T₂₂₂₆).

The spelling of 3716681 in words is "three million, seven hundred sixteen thousand, six hundred eighty-one".