871105871 has 2 divisors, whose sum is σ = 871105872. Its totient is φ = 871105870.

The previous prime is 871105867. The next prime is 871105883. The reversal of 871105871 is 178501178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 871105871 - 2² = 871105867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871105811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435552935 + 435552936.

It is an arithmetic number, because the mean of its divisors is an integer number (435552936).

Almost surely, 2^871105871 is an apocalyptic number.

871105871 is a deficient number, since it is larger than the sum of its proper divisors (1).

871105871 is an equidigital number, since it uses as much as digits as its factorization.

871105871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 38.

The square root of 871105871 is about 29514.5027232376. The cubic root of 871105871 is about 955.0445858774.

The spelling of 871105871 in words is "eight hundred seventy-one million, one hundred five thousand, eight hundred seventy-one".