9323780489 has 2 divisors, whose sum is σ = 9323780490. Its totient is φ = 9323780488.

The previous prime is 9323780471. The next prime is 9323780497. The reversal of 9323780489 is 9840873239.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6450820489 + 2872960000 = 80317^2 + 53600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9323780489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9323780489.

It is not a weakly prime, because it can be changed into another prime (9323780189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4661890244 + 4661890245.

It is an arithmetic number, because the mean of its divisors is an integer number (4661890245).

Almost surely, 2^9323780489 is an apocalyptic number.

It is an amenable number.

9323780489 is a deficient number, since it is larger than the sum of its proper divisors (1).

9323780489 is an equidigital number, since it uses as much as digits as its factorization.

9323780489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 9323780489 is about 96559.7249840740. The cubic root of 9323780489 is about 2104.7346301972.

The spelling of 9323780489 in words is "nine billion, three hundred twenty-three million, seven hundred eighty thousand, four hundred eighty-nine".