3981707 has 2 divisors, whose sum is σ = 3981708. Its totient is φ = 3981706.

The previous prime is 3981683. The next prime is 3981709. The reversal of 3981707 is 7071893.

3981707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (7071893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3981707 - 2⁶ = 3981643 is a prime.

Together with 3981709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3981709) 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, 1990853 + 1990854.

It is an arithmetic number, because the mean of its divisors is an integer number (1990854).

Almost surely, 2^3981707 is an apocalyptic number.

3981707 is a deficient number, since it is larger than the sum of its proper divisors (1).

3981707 is an equidigital number, since it uses as much as digits as its factorization.

3981707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 3981707 is about 1995.4215093559. The cubic root of 3981707 is about 158.4977493071.

The spelling of 3981707 in words is "three million, nine hundred eighty-one thousand, seven hundred seven".