8609971 has 4 divisors (see below), whose sum is σ = 8887744. Its totient is φ = 8332200.

The previous prime is 8609963. The next prime is 8609987. The reversal of 8609971 is 1799068.

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 8609971 - 2³ = 8609963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8609911) 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, 138840 + ... + 138901.

It is an arithmetic number, because the mean of its divisors is an integer number (2221936).

Almost surely, 2^8609971 is an apocalyptic number.

8609971 is a deficient number, since it is larger than the sum of its proper divisors (277773).

8609971 is a wasteful number, since it uses less digits than its factorization.

8609971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277772.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 8609971 is about 2934.2752086333. The cubic root of 8609971 is about 204.9591114167.

The spelling of 8609971 in words is "eight million, six hundred nine thousand, nine hundred seventy-one".