9687616791 has 4 divisors (see below), whose sum is σ = 12916822392. Its totient is φ = 6458411192.

The previous prime is 9687616751. The next prime is 9687616843. The reversal of 9687616791 is 1976167869.

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 9687616791 - 2¹⁴ = 9687600407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9687616751) 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, 1614602796 + ... + 1614602801.

It is an arithmetic number, because the mean of its divisors is an integer number (3229205598).

Almost surely, 2^9687616791 is an apocalyptic number.

9687616791 is a deficient number, since it is larger than the sum of its proper divisors (3229205601).

9687616791 is a wasteful number, since it uses less digits than its factorization.

9687616791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229205600.

The product of its digits is 6858432, while the sum is 60.

The square root of 9687616791 is about 98425.6917222328. The cubic root of 9687616791 is about 2131.7633124877.

The spelling of 9687616791 in words is "nine billion, six hundred eighty-seven million, six hundred sixteen thousand, seven hundred ninety-one".