871457663 has 4 divisors (see below), whose sum is σ = 871617528. Its totient is φ = 871297800.

The previous prime is 871457579. The next prime is 871457701. The reversal of 871457663 is 366754178.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 871457663 - 2¹⁰ = 871456639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871453663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71456 + ... + 82757.

It is an arithmetic number, because the mean of its divisors is an integer number (217904382).

Almost surely, 2^871457663 is an apocalyptic number.

871457663 is a deficient number, since it is larger than the sum of its proper divisors (159865).

871457663 is a wasteful number, since it uses less digits than its factorization.

871457663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159864.

The product of its digits is 846720, while the sum is 47.

The square root of 871457663 is about 29520.4617680686. The cubic root of 871457663 is about 955.1731319928.

The spelling of 871457663 in words is "eight hundred seventy-one million, four hundred fifty-seven thousand, six hundred sixty-three".