3947963 has 2 divisors, whose sum is σ = 3947964. Its totient is φ = 3947962.

The previous prime is 3947941. The next prime is 3947971. The reversal of 3947963 is 3697493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3947963 - 2⁶ = 3947899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3947963.

It is not a weakly prime, because it can be changed into another prime (3947903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1973981 + 1973982.

It is an arithmetic number, because the mean of its divisors is an integer number (1973982).

Almost surely, 2^3947963 is an apocalyptic number.

3947963 is a deficient number, since it is larger than the sum of its proper divisors (1).

3947963 is an equidigital number, since it uses as much as digits as its factorization.

3947963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 41.

The square root of 3947963 is about 1986.9481623837. The cubic root of 3947963 is about 158.0487351664.

The spelling of 3947963 in words is "three million, nine hundred forty-seven thousand, nine hundred sixty-three".