871855313 has 8 divisors (see below), whose sum is σ = 996602880. Its totient is φ = 747156960.

The previous prime is 871855307. The next prime is 871855349. The reversal of 871855313 is 313558178.

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 871855313 - 2¹² = 871851217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (871855373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41168 + ... + 58638.

It is an arithmetic number, because the mean of its divisors is an integer number (124575360).

Almost surely, 2^871855313 is an apocalyptic number.

It is an amenable number.

871855313 is a deficient number, since it is larger than the sum of its proper divisors (124747567).

871855313 is a wasteful number, since it uses less digits than its factorization.

871855313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24607.

The product of its digits is 100800, while the sum is 41.

The square root of 871855313 is about 29527.1961587957. The cubic root of 871855313 is about 955.3183931474.

The spelling of 871855313 in words is "eight hundred seventy-one million, eight hundred fifty-five thousand, three hundred thirteen".