868571 has 6 divisors (see below), whose sum is σ = 950916. Its totient is φ = 786800.

The previous prime is 868561. The next prime is 868577. The reversal of 868571 is 175868.

It is a happy number.

868571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 868571 - 2¹⁰ = 867547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2951 + ... + 3231.

It is an arithmetic number, because the mean of its divisors is an integer number (158486).

2⁸⁶⁸⁵⁷¹ is an apocalyptic number.

868571 is a deficient number, since it is larger than the sum of its proper divisors (82345).

868571 is an equidigital number, since it uses as much as digits as its factorization.

868571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 292 counting only the distinct ones).

The product of its digits is 13440, while the sum is 35.

The square root of 868571 is about 931.9715660899. The cubic root of 868571 is about 95.4117309813.

The spelling of 868571 in words is "eight hundred sixty-eight thousand, five hundred seventy-one".