871504788 has 72 divisors (see below), whose sum is σ = 2580578784. Its totient is φ = 226363200.

The previous prime is 871504783. The next prime is 871504801. The reversal of 871504788 is 887405178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871504783) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60903 + ... + 73838.

It is an arithmetic number, because the mean of its divisors is an integer number (35841372).

Almost surely, 2^871504788 is an apocalyptic number.

It is an amenable number.

871504788 is an abundant number, since it is smaller than the sum of its proper divisors (1709073996).

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

871504788 is a wasteful number, since it uses less digits than its factorization.

871504788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134773 (or 134764 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 48.

The square root of 871504788 is about 29521.2599324622. The cubic root of 871504788 is about 955.1903490169.

The spelling of 871504788 in words is "eight hundred seventy-one million, five hundred four thousand, seven hundred eighty-eight".