9687665 has 16 divisors (see below), whose sum is σ = 12649728. Its totient is φ = 7079616.

The previous prime is 9687661. The next prime is 9687697. The reversal of 9687665 is 5667869.

9687665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9687665 - 2² = 9687661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9687661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5972 + ... + 7418.

It is an arithmetic number, because the mean of its divisors is an integer number (790608).

Almost surely, 2^9687665 is an apocalyptic number.

It is an amenable number.

9687665 is a deficient number, since it is larger than the sum of its proper divisors (2962063).

9687665 is a wasteful number, since it uses less digits than its factorization.

9687665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its digits is 544320, while the sum is 47.

The square root of 9687665 is about 3112.5014056222. The cubic root of 9687665 is about 213.1766848617.

The spelling of 9687665 in words is "nine million, six hundred eighty-seven thousand, six hundred sixty-five".