871653456 has 60 divisors (see below), whose sum is σ = 2443018240. Its totient is φ = 290122560.

The previous prime is 871653403. The next prime is 871653457. The reversal of 871653456 is 654356178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871653457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102321 + ... + 110511.

Almost surely, 2^871653456 is an apocalyptic number.

It is an amenable number.

871653456 is an abundant number, since it is smaller than the sum of its proper divisors (1571364784).

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

871653456 is a wasteful number, since it uses less digits than its factorization.

871653456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8944 (or 8935 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 871653456 is about 29523.7778070490. Note that the first 3 decimals coincide. The cubic root of 871653456 is about 955.2446605046.

The spelling of 871653456 in words is "eight hundred seventy-one million, six hundred fifty-three thousand, four hundred fifty-six".