9664393 has 4 divisors (see below), whose sum is σ = 10084608. Its totient is φ = 9244180.

The previous prime is 9664367. The next prime is 9664399. The reversal of 9664393 is 3934669.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9664393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9664399) 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 3 ways as a sum of consecutive naturals, for example, 210073 + ... + 210118.

It is an arithmetic number, because the mean of its divisors is an integer number (2521152).

Almost surely, 2^9664393 is an apocalyptic number.

It is an amenable number.

9664393 is a deficient number, since it is larger than the sum of its proper divisors (420215).

9664393 is a wasteful number, since it uses less digits than its factorization.

9664393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420214.

The product of its digits is 104976, while the sum is 40.

The square root of 9664393 is about 3108.7606855466. The cubic root of 9664393 is about 213.0058481793.

The spelling of 9664393 in words is "nine million, six hundred sixty-four thousand, three hundred ninety-three".