9656896687 has 4 divisors (see below), whose sum is σ = 9657093600. Its totient is φ = 9656699776.

The previous prime is 9656896657. The next prime is 9656896693. The reversal of 9656896687 is 7866986569.

9656896687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 9656896687 - 2³¹ = 7509413039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9656896637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40143 + ... + 144655.

It is an arithmetic number, because the mean of its divisors is an integer number (2414273400).

Almost surely, 2^9656896687 is an apocalyptic number.

9656896687 is a deficient number, since it is larger than the sum of its proper divisors (196913).

9656896687 is a wasteful number, since it uses less digits than its factorization.

9656896687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196912.

The product of its digits is 235146240, while the sum is 70.

The square root of 9656896687 is about 98269.5104648436. The cubic root of 9656896687 is about 2129.5076034176.

The spelling of 9656896687 in words is "nine billion, six hundred fifty-six million, eight hundred ninety-six thousand, six hundred eighty-seven".