868580171 has 4 divisors (see below), whose sum is σ = 868648392. Its totient is φ = 868511952.

The previous prime is 868580113. The next prime is 868580179. The reversal of 868580171 is 171085868.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868580171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868580179) 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, 8705 + ... + 42578.

It is an arithmetic number, because the mean of its divisors is an integer number (217162098).

Almost surely, 2^868580171 is an apocalyptic number.

868580171 is a deficient number, since it is larger than the sum of its proper divisors (68221).

868580171 is a wasteful number, since it uses less digits than its factorization.

868580171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68220.

The product of its (nonzero) digits is 107520, while the sum is 44.

The square root of 868580171 is about 29471.6842240141. The cubic root of 868580171 is about 954.1206678875.

The spelling of 868580171 in words is "eight hundred sixty-eight million, five hundred eighty thousand, one hundred seventy-one".