9094028891 has 2 divisors, whose sum is σ = 9094028892. Its totient is φ = 9094028890.

The previous prime is 9094028863. The next prime is 9094028917. The reversal of 9094028891 is 1988204909.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9094028891 - 2²⁶ = 9026920027 is a prime.

It is a super-2 number, since 2×9094028891² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9094058891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4547014445 + 4547014446.

It is an arithmetic number, because the mean of its divisors is an integer number (4547014446).

Almost surely, 2^9094028891 is an apocalyptic number.

9094028891 is a deficient number, since it is larger than the sum of its proper divisors (1).

9094028891 is an equidigital number, since it uses as much as digits as its factorization.

9094028891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 9094028891 is about 95362.6178908696. The cubic root of 9094028891 is about 2087.3027399438.

The spelling of 9094028891 in words is "nine billion, ninety-four million, twenty-eight thousand, eight hundred ninety-one".