9907091 has 2 divisors, whose sum is σ = 9907092. Its totient is φ = 9907090.

The previous prime is 9907087. The next prime is 9907097. The reversal of 9907091 is 1907099.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9907091 - 2² = 9907087 is a prime.

It is not a weakly prime, because it can be changed into another prime (9907097) 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, 4953545 + 4953546.

It is an arithmetic number, because the mean of its divisors is an integer number (4953546).

Almost surely, 2^9907091 is an apocalyptic number.

9907091 is a deficient number, since it is larger than the sum of its proper divisors (1).

9907091 is an equidigital number, since it uses as much as digits as its factorization.

9907091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 9907091 is about 3147.5531766755. The cubic root of 9907091 is about 214.7741706669.

The spelling of 9907091 in words is "nine million, nine hundred seven thousand, ninety-one".