9666329 has 4 divisors (see below), whose sum is σ = 9672720. Its totient is φ = 9659940.

The previous prime is 9666323. The next prime is 9666331. The reversal of 9666329 is 9236669.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9236669 = 13 ⋅710513.

It is a cyclic number.

It is not a de Polignac number, because 9666329 - 2⁴ = 9666313 is a prime.

It is a d-powerful number, because it can be written as 9⁴ + 6 + 6⁶ + 6⁶ + 3¹⁴ + 2⁹ + 9⁷ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9666323) 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, 494 + ... + 4424.

It is an arithmetic number, because the mean of its divisors is an integer number (2418180).

Almost surely, 2^9666329 is an apocalyptic number.

It is an amenable number.

9666329 is a deficient number, since it is larger than the sum of its proper divisors (6391).

9666329 is a wasteful number, since it uses less digits than its factorization.

9666329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390.

The product of its digits is 104976, while the sum is 41.

The square root of 9666329 is about 3109.0720480555. The cubic root of 9666329 is about 213.0200705517.

The spelling of 9666329 in words is "nine million, six hundred sixty-six thousand, three hundred twenty-nine".