871106109 has 4 divisors (see below), whose sum is σ = 1161474816. Its totient is φ = 580737404.

The previous prime is 871106099. The next prime is 871106141. The reversal of 871106109 is 901601178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 871106109 - 2⁵ = 871106077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 871106109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871106009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145184349 + ... + 145184354.

It is an arithmetic number, because the mean of its divisors is an integer number (290368704).

Almost surely, 2^871106109 is an apocalyptic number.

It is an amenable number.

871106109 is a deficient number, since it is larger than the sum of its proper divisors (290368707).

871106109 is a wasteful number, since it uses less digits than its factorization.

871106109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290368706.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 871106109 is about 29514.5067551535. The cubic root of 871106109 is about 955.0446728552.

The spelling of 871106109 in words is "eight hundred seventy-one million, one hundred six thousand, one hundred nine".