871875973 has 4 divisors (see below), whose sum is σ = 909783648. Its totient is φ = 833968300.

The previous prime is 871875967. The next prime is 871875997. The reversal of 871875973 is 379578178.

It is a happy number.

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 871875973 - 2⁵ = 871875941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871872973) 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, 18953803 + ... + 18953848.

It is an arithmetic number, because the mean of its divisors is an integer number (227445912).

Almost surely, 2^871875973 is an apocalyptic number.

It is an amenable number.

871875973 is a deficient number, since it is larger than the sum of its proper divisors (37907675).

871875973 is a wasteful number, since it uses less digits than its factorization.

871875973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37907674.

The product of its digits is 2963520, while the sum is 55.

The square root of 871875973 is about 29527.5460036895. The cubic root of 871875973 is about 955.3259390179.

The spelling of 871875973 in words is "eight hundred seventy-one million, eight hundred seventy-five thousand, nine hundred seventy-three".