63895543 has 2 divisors, whose sum is σ = 63895544. Its totient is φ = 63895542.

The previous prime is 63895523. The next prime is 63895547. The reversal of 63895543 is 34559836.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63895543 - 2⁹ = 63895031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63895543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63895547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31947771 + 31947772.

It is an arithmetic number, because the mean of its divisors is an integer number (31947772).

Almost surely, 2^63895543 is an apocalyptic number.

63895543 is a deficient number, since it is larger than the sum of its proper divisors (1).

63895543 is an equidigital number, since it uses as much as digits as its factorization.

63895543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The square root of 63895543 is about 7993.4687714408. The cubic root of 63895543 is about 399.7822627477.

The spelling of 63895543 in words is "sixty-three million, eight hundred ninety-five thousand, five hundred forty-three".