9306385921 has 4 divisors (see below), whose sum is σ = 10635869632. Its totient is φ = 7976902212.

The previous prime is 9306385901. The next prime is 9306385937. The reversal of 9306385921 is 1295836039.

It is a happy number.

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 not a de Polignac number, because 9306385921 - 2⁵ = 9306385889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9306385901) 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, 664741845 + ... + 664741858.

It is an arithmetic number, because the mean of its divisors is an integer number (2658967408).

Almost surely, 2^9306385921 is an apocalyptic number.

It is an amenable number.

9306385921 is a deficient number, since it is larger than the sum of its proper divisors (1329483711).

9306385921 is a wasteful number, since it uses less digits than its factorization.

9306385921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329483710.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 9306385921 is about 96469.6113861769. The cubic root of 9306385921 is about 2103.4249418290.

The spelling of 9306385921 in words is "nine billion, three hundred six million, three hundred eighty-five thousand, nine hundred twenty-one".