871434081 has 36 divisors (see below), whose sum is σ = 1470810900. Its totient is φ = 495730368.

The previous prime is 871434041. The next prime is 871434089. The reversal of 871434081 is 180434178.

871434081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 749883456 + 121550625 = 27384^2 + 11025^2 .

It is not a de Polignac number, because 871434081 - 2¹¹ = 871432033 is a prime.

It is a super-2 number, since 2×871434081² = 1518794715056629122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (871434089) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 96675 + ... + 105303.

Almost surely, 2^871434081 is an apocalyptic number.

It is an amenable number.

871434081 is a deficient number, since it is larger than the sum of its proper divisors (599376819).

871434081 is a wasteful number, since it uses less digits than its factorization.

871434081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8878 (or 8868 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 871434081 is about 29520.0623474951. The cubic root of 871434081 is about 955.1645161235.

The spelling of 871434081 in words is "eight hundred seventy-one million, four hundred thirty-four thousand, eighty-one".