871604885 has 8 divisors (see below), whose sum is σ = 1047115680. Its totient is φ = 696490704.

The previous prime is 871604873. The next prime is 871604887. The reversal of 871604885 is 588406178.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 871604885 - 2²² = 867410581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871604887) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 94295 + ... + 103124.

It is an arithmetic number, because the mean of its divisors is an integer number (130889460).

Almost surely, 2^871604885 is an apocalyptic number.

It is an amenable number.

871604885 is a deficient number, since it is larger than the sum of its proper divisors (175510795).

871604885 is a wasteful number, since it uses less digits than its factorization.

871604885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198307.

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 871604885 is about 29522.9552213189. The cubic root of 871604885 is about 955.2269171954.

The spelling of 871604885 in words is "eight hundred seventy-one million, six hundred four thousand, eight hundred eighty-five".