3968387 has 2 divisors, whose sum is σ = 3968388. Its totient is φ = 3968386.

The previous prime is 3968381. The next prime is 3968411. The reversal of 3968387 is 7838693.

3968387 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 is a cyclic number.

It is not a de Polignac number, because 3968387 - 2⁶ = 3968323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3968381) 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, 1984193 + 1984194.

It is an arithmetic number, because the mean of its divisors is an integer number (1984194).

Almost surely, 2^3968387 is an apocalyptic number.

3968387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3968387 is an equidigital number, since it uses as much as digits as its factorization.

3968387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 3968387 is about 1992.0810726474. The cubic root of 3968387 is about 158.3208110749.

The spelling of 3968387 in words is "three million, nine hundred sixty-eight thousand, three hundred eighty-seven".