9656871 has 24 divisors (see below), whose sum is σ = 15102720. Its totient is φ = 5472432.

The previous prime is 9656869. The next prime is 9656887. The reversal of 9656871 is 1786569.

9656871 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9656871 - 2¹ = 9656869 is a prime.

9656871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9656821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26130 + ... + 26496.

It is an arithmetic number, because the mean of its divisors is an integer number (629280).

Almost surely, 2^9656871 is an apocalyptic number.

9656871 is a deficient number, since it is larger than the sum of its proper divisors (5445849).

9656871 is a wasteful number, since it uses less digits than its factorization.

9656871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 556 counting only the distinct ones).

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

The square root of 9656871 is about 3107.5506431915. The cubic root of 9656871 is about 212.9505715278.

The spelling of 9656871 in words is "nine million, six hundred fifty-six thousand, eight hundred seventy-one".