871552817 has 12 divisors (see below), whose sum is σ = 913441536. Its totient is φ = 830716920.

The previous prime is 871552813. The next prime is 871552837. The reversal of 871552817 is 718255178.

It is not a de Polignac number, because 871552817 - 2² = 871552813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (871552813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136028 + ... + 142290.

It is an arithmetic number, because the mean of its divisors is an integer number (76120128).

Almost surely, 2^871552817 is an apocalyptic number.

It is an amenable number.

871552817 is a deficient number, since it is larger than the sum of its proper divisors (41888719).

871552817 is an equidigital number, since it uses as much as digits as its factorization.

871552817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6428 (or 6361 counting only the distinct ones).

The product of its digits is 156800, while the sum is 44.

The square root of 871552817 is about 29522.0733858583. The cubic root of 871552817 is about 955.2078956768.

The spelling of 871552817 in words is "eight hundred seventy-one million, five hundred fifty-two thousand, eight hundred seventeen".