9945307 has 2 divisors, whose sum is σ = 9945308. Its totient is φ = 9945306.

The previous prime is 9945277. The next prime is 9945317. The reversal of 9945307 is 7035499.

It is a strong prime.

It is an emirp because it is prime and its reverse (7035499) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9945307 is a prime.

9945307 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9945317) 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 as a sum of consecutive naturals, namely, 4972653 + 4972654.

It is an arithmetic number, because the mean of its divisors is an integer number (4972654).

Almost surely, 2^9945307 is an apocalyptic number.

9945307 is a deficient number, since it is larger than the sum of its proper divisors (1).

9945307 is an equidigital number, since it uses as much as digits as its factorization.

9945307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 9945307 is about 3153.6180808716. The cubic root of 9945307 is about 215.0499757630.

The spelling of 9945307 in words is "nine million, nine hundred forty-five thousand, three hundred seven".