9665123 has 8 divisors (see below), whose sum is σ = 10432800. Its totient is φ = 8900928.

The previous prime is 9665113. The next prime is 9665137. The reversal of 9665123 is 3215669.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9665123 - 2⁴ = 9665107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9665123.

It is not an unprimeable number, because it can be changed into a prime (9665113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10058 + ... + 10976.

It is an arithmetic number, because the mean of its divisors is an integer number (1304100).

Almost surely, 2^9665123 is an apocalyptic number.

9665123 is a deficient number, since it is larger than the sum of its proper divisors (767677).

9665123 is a wasteful number, since it uses less digits than its factorization.

9665123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741.

The product of its digits is 9720, while the sum is 32.

The square root of 9665123 is about 3108.8780934607. The cubic root of 9665123 is about 213.0112111771.

The spelling of 9665123 in words is "nine million, six hundred sixty-five thousand, one hundred twenty-three".