9601665 has 16 divisors (see below), whose sum is σ = 15458688. Its totient is φ = 5088896.

The previous prime is 9601663. The next prime is 9601693. The reversal of 9601665 is 5661069.

It is a cyclic number.

It is not a de Polignac number, because 9601665 - 2¹ = 9601663 is a prime.

9601665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9601663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589 + ... + 4421.

It is an arithmetic number, because the mean of its divisors is an integer number (966168).

Almost surely, 2^9601665 is an apocalyptic number.

It is an amenable number.

9601665 is a deficient number, since it is larger than the sum of its proper divisors (5857023).

9601665 is a wasteful number, since it uses less digits than its factorization.

9601665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 9601665 is about 3098.6553535364. The cubic root of 9601665 is about 212.5440001160.

The spelling of 9601665 in words is "nine million, six hundred one thousand, six hundred sixty-five".