475643963 has 2 divisors, whose sum is σ = 475643964. Its totient is φ = 475643962.

The previous prime is 475643953. The next prime is 475643999. The reversal of 475643963 is 369346574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 475643963 - 2¹² = 475639867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (475643953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237821981 + 237821982.

It is an arithmetic number, because the mean of its divisors is an integer number (237821982).

Almost surely, 2^475643963 is an apocalyptic number.

475643963 is a deficient number, since it is larger than the sum of its proper divisors (1).

475643963 is an equidigital number, since it uses as much as digits as its factorization.

475643963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 47.

The square root of 475643963 is about 21809.2632383581. The cubic root of 475643963 is about 780.5978120310.

The spelling of 475643963 in words is "four hundred seventy-five million, six hundred forty-three thousand, nine hundred sixty-three".