9990307 has 2 divisors, whose sum is σ = 9990308. Its totient is φ = 9990306.

The previous prime is 9990289. The next prime is 9990359. The reversal of 9990307 is 7030999.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9990307 is a prime.

It is not a weakly prime, because it can be changed into another prime (9930307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995153 + 4995154.

It is an arithmetic number, because the mean of its divisors is an integer number (4995154).

Almost surely, 2^9990307 is an apocalyptic number.

9990307 is a deficient number, since it is larger than the sum of its proper divisors (1).

9990307 is an equidigital number, since it uses as much as digits as its factorization.

9990307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 9990307 is about 3160.7446907335. The cubic root of 9990307 is about 215.3738367153.

The spelling of 9990307 in words is "nine million, nine hundred ninety thousand, three hundred seven".