854487863 has 2 divisors, whose sum is σ = 854487864. Its totient is φ = 854487862.

The previous prime is 854487853. The next prime is 854487883. The reversal of 854487863 is 368784458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 854487863 - 2⁸ = 854487607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854487853) 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, 427243931 + 427243932.

It is an arithmetic number, because the mean of its divisors is an integer number (427243932).

Almost surely, 2^854487863 is an apocalyptic number.

854487863 is a deficient number, since it is larger than the sum of its proper divisors (1).

854487863 is an equidigital number, since it uses as much as digits as its factorization.

854487863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960, while the sum is 53.

The square root of 854487863 is about 29231.6243647184. The cubic root of 854487863 is about 948.9324528881.

The spelling of 854487863 in words is "eight hundred fifty-four million, four hundred eighty-seven thousand, eight hundred sixty-three".