8656971 has 8 divisors (see below), whose sum is σ = 11556240. Its totient is φ = 5764512.

The previous prime is 8656939. The next prime is 8656979. The reversal of 8656971 is 1796568.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8656971 - 2⁵ = 8656939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8656979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3945 + ... + 5733.

It is an arithmetic number, because the mean of its divisors is an integer number (1444530).

Almost surely, 2^8656971 is an apocalyptic number.

8656971 is a deficient number, since it is larger than the sum of its proper divisors (2899269).

8656971 is a wasteful number, since it uses less digits than its factorization.

8656971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405.

The product of its digits is 90720, while the sum is 42.

The square root of 8656971 is about 2942.2731008525. The cubic root of 8656971 is about 205.3313775910.

The spelling of 8656971 in words is "eight million, six hundred fifty-six thousand, nine hundred seventy-one".