871623680 has 44 divisors (see below), whose sum is σ = 2090887680. Its totient is φ = 348647424.

The previous prime is 871623673. The next prime is 871623713. The reversal of 871623680 is 86326178.

It is a happy number.

871623680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80000 + ... + 90239.

Almost surely, 2^871623680 is an apocalyptic number.

871623680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

871623680 is an abundant number, since it is smaller than the sum of its proper divisors (1219264000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871623680 is a wasteful number, since it uses less digits than its factorization.

871623680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170264 (or 170246 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 871623680 is about 29523.2735312329. The cubic root of 871623680 is about 955.2337832120.

The spelling of 871623680 in words is "eight hundred seventy-one million, six hundred twenty-three thousand, six hundred eighty".