871023925 has 6 divisors (see below), whose sum is σ = 1080069698. Its totient is φ = 696819120.

The previous prime is 871023913. The next prime is 871023949. The reversal of 871023925 is 529320178.

It can be written as a sum of positive squares in 3 ways, for example, as 178649956 + 692373969 = 13366^2 + 26313^2 .

It is not a de Polignac number, because 871023925 - 2¹⁵ = 870991157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17420454 + ... + 17420503.

Almost surely, 2^871023925 is an apocalyptic number.

It is an amenable number.

871023925 is a deficient number, since it is larger than the sum of its proper divisors (209045773).

871023925 is a wasteful number, since it uses less digits than its factorization.

871023925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34840967 (or 34840962 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 871023925 is about 29513.1144578135. The cubic root of 871023925 is about 955.0146375323.

The spelling of 871023925 in words is "eight hundred seventy-one million, twenty-three thousand, nine hundred twenty-five".