871847063 has 2 divisors, whose sum is σ = 871847064. Its totient is φ = 871847062.

The previous prime is 871847017. The next prime is 871847099. The reversal of 871847063 is 360748178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 871847063 - 2¹⁸ = 871584919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871847863) 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, 435923531 + 435923532.

It is an arithmetic number, because the mean of its divisors is an integer number (435923532).

Almost surely, 2^871847063 is an apocalyptic number.

871847063 is a deficient number, since it is larger than the sum of its proper divisors (1).

871847063 is an equidigital number, since it uses as much as digits as its factorization.

871847063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 871847063 is about 29527.0564567483. The cubic root of 871847063 is about 955.3153798792.

The spelling of 871847063 in words is "eight hundred seventy-one million, eight hundred forty-seven thousand, sixty-three".