9916091 has 2 divisors, whose sum is σ = 9916092. Its totient is φ = 9916090.

The previous prime is 9916069. The next prime is 9916103. The reversal of 9916091 is 1906199.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9916091 is a prime.

It is not a weakly prime, because it can be changed into another prime (9916021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4958045 + 4958046.

It is an arithmetic number, because the mean of its divisors is an integer number (4958046).

Almost surely, 2^9916091 is an apocalyptic number.

9916091 is a deficient number, since it is larger than the sum of its proper divisors (1).

9916091 is an equidigital number, since it uses as much as digits as its factorization.

9916091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 9916091 is about 3148.9825340894. The cubic root of 9916091 is about 214.8391874817.

The spelling of 9916091 in words is "nine million, nine hundred sixteen thousand, ninety-one".