395243963 has 2 divisors, whose sum is σ = 395243964. Its totient is φ = 395243962.

The previous prime is 395243941. The next prime is 395244011. The reversal of 395243963 is 369342593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 395243963 - 2²⁰ = 394195387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (395243363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197621981 + 197621982.

It is an arithmetic number, because the mean of its divisors is an integer number (197621982).

Almost surely, 2^395243963 is an apocalyptic number.

395243963 is a deficient number, since it is larger than the sum of its proper divisors (1).

395243963 is an equidigital number, since it uses as much as digits as its factorization.

395243963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 44.

The square root of 395243963 is about 19880.7435223132. The cubic root of 395243963 is about 733.8744170361.

The spelling of 395243963 in words is "three hundred ninety-five million, two hundred forty-three thousand, nine hundred sixty-three".