871131803 has 4 divisors (see below), whose sum is σ = 878841048. Its totient is φ = 863422560.

The previous prime is 871131787. The next prime is 871131827. The reversal of 871131803 is 308131178.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 871131803 - 2⁴ = 871131787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 871131803.

It is not an unprimeable number, because it can be changed into a prime (871131103) 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, 3854453 + ... + 3854678.

It is an arithmetic number, because the mean of its divisors is an integer number (219710262).

Almost surely, 2^871131803 is an apocalyptic number.

871131803 is a deficient number, since it is larger than the sum of its proper divisors (7709245).

871131803 is a wasteful number, since it uses less digits than its factorization.

871131803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709244.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 871131803 is about 29514.9420294196. The cubic root of 871131803 is about 955.0540627088.

The spelling of 871131803 in words is "eight hundred seventy-one million, one hundred thirty-one thousand, eight hundred three".