8609871 has 16 divisors (see below), whose sum is σ = 12214368. Its totient is φ = 5376000.

The previous prime is 8609849. The next prime is 8609879. The reversal of 8609871 is 1789068.

It is not a de Polignac number, because 8609871 - 2¹⁵ = 8577103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8609879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20241 + ... + 20661.

It is an arithmetic number, because the mean of its divisors is an integer number (763398).

Almost surely, 2^8609871 is an apocalyptic number.

8609871 is a deficient number, since it is larger than the sum of its proper divisors (3604497).

8609871 is a wasteful number, since it uses less digits than its factorization.

8609871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 8609871 is about 2934.2581686007. The cubic root of 8609871 is about 204.9583179185.

It can be divided in two parts, 860 and 9871, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 8609871 in words is "eight million, six hundred nine thousand, eight hundred seventy-one".