9768509 has 2 divisors, whose sum is σ = 9768510. Its totient is φ = 9768508.

The previous prime is 9768487. The next prime is 9768529. The reversal of 9768509 is 9058679.

9768509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6775609 + 2992900 = 2603^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 9768509 - 2¹² = 9764413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9768509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9768529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4884254 + 4884255.

It is an arithmetic number, because the mean of its divisors is an integer number (4884255).

Almost surely, 2^9768509 is an apocalyptic number.

It is an amenable number.

9768509 is a deficient number, since it is larger than the sum of its proper divisors (1).

9768509 is an equidigital number, since it uses as much as digits as its factorization.

9768509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 9768509 is about 3125.4614059367. The cubic root of 9768509 is about 213.7680326316.

The spelling of 9768509 in words is "nine million, seven hundred sixty-eight thousand, five hundred nine".