3965911 has 2 divisors, whose sum is σ = 3965912. Its totient is φ = 3965910.

The previous prime is 3965903. The next prime is 3965939. The reversal of 3965911 is 1195693.

It is a weak prime.

It is an emirp because it is prime and its reverse (1195693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3965911 - 2³ = 3965903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3905911) 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 as a sum of consecutive naturals, namely, 1982955 + 1982956.

It is an arithmetic number, because the mean of its divisors is an integer number (1982956).

Almost surely, 2^3965911 is an apocalyptic number.

3965911 is a deficient number, since it is larger than the sum of its proper divisors (1).

3965911 is an equidigital number, since it uses as much as digits as its factorization.

3965911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 34.

The square root of 3965911 is about 1991.4595150291. The cubic root of 3965911 is about 158.2878771327.

The spelling of 3965911 in words is "three million, nine hundred sixty-five thousand, nine hundred eleven".