9666005 has 8 divisors (see below), whose sum is σ = 11650392. Its totient is φ = 7698688.

The previous prime is 9666001. The next prime is 9666031. The reversal of 9666005 is 5006669.

It can be written as a sum of positive squares in 4 ways, for example, as 2316484 + 7349521 = 1522^2 + 2711^2 .

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 9666005 - 2² = 9666001 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 (9666001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984 + ... + 5313.

It is an arithmetic number, because the mean of its divisors is an integer number (1456299).

Almost surely, 2^9666005 is an apocalyptic number.

It is an amenable number.

9666005 is a deficient number, since it is larger than the sum of its proper divisors (1984387).

9666005 is a wasteful number, since it uses less digits than its factorization.

9666005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8535.

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

The square root of 9666005 is about 3109.0199420396. The cubic root of 9666005 is about 213.0176904936.

The spelling of 9666005 in words is "nine million, six hundred sixty-six thousand, five".