871076871 has 72 divisors (see below), whose sum is σ = 1499357184. Its totient is φ = 485805600.

The previous prime is 871076867. The next prime is 871076917. The reversal of 871076871 is 178670178.

It is a happy number.

It is not a de Polignac number, because 871076871 - 2² = 871076867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871072871) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5768646 + ... + 5768796.

Almost surely, 2^871076871 is an apocalyptic number.

871076871 is a deficient number, since it is larger than the sum of its proper divisors (628280313).

871076871 is a wasteful number, since it uses less digits than its factorization.

871076871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 45.

The square root of 871076871 is about 29514.0114352489. The cubic root of 871076871 is about 955.0339876248.

The spelling of 871076871 in words is "eight hundred seventy-one million, seventy-six thousand, eight hundred seventy-one".