9328397509 has 4 divisors (see below), whose sum is σ = 9349173900. Its totient is φ = 9307621120.

The previous prime is 9328397503. The next prime is 9328397563. The reversal of 9328397509 is 9057938239.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7939344609 + 1389052900 = 89103^2 + 37270^2 .

It is a cyclic number.

It is not a de Polignac number, because 9328397509 - 2⁷ = 9328397381 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 9328397509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9328397503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10387522 + ... + 10388419.

It is an arithmetic number, because the mean of its divisors is an integer number (2337293475).

Almost surely, 2^9328397509 is an apocalyptic number.

It is an amenable number.

9328397509 is a deficient number, since it is larger than the sum of its proper divisors (20776391).

9328397509 is a wasteful number, since it uses less digits than its factorization.

9328397509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20776390.

The product of its (nonzero) digits is 3674160, while the sum is 55.

The square root of 9328397509 is about 96583.6296118550. The cubic root of 9328397509 is about 2105.0819856619.

The spelling of 9328397509 in words is "nine billion, three hundred twenty-eight million, three hundred ninety-seven thousand, five hundred nine".