9094991 has 2 divisors, whose sum is σ = 9094992. Its totient is φ = 9094990.

The previous prime is 9094979. The next prime is 9094993. The reversal of 9094991 is 1994909.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9094991 - 2⁶ = 9094927 is a prime.

It is a super-2 number, since 2×9094991² = 165437722580162, which contains 22 as substring.

Together with 9094993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9094993) 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, 4547495 + 4547496.

It is an arithmetic number, because the mean of its divisors is an integer number (4547496).

Almost surely, 2^9094991 is an apocalyptic number.

9094991 is a deficient number, since it is larger than the sum of its proper divisors (1).

9094991 is an equidigital number, since it uses as much as digits as its factorization.

9094991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 9094991 is about 3015.7902778542. The cubic root of 9094991 is about 208.7376346555.

The spelling of 9094991 in words is "nine million, ninety-four thousand, nine hundred ninety-one".