9421109 has 2 divisors, whose sum is σ = 9421110. Its totient is φ = 9421108.

The previous prime is 9421091. The next prime is 9421129. The reversal of 9421109 is 9011249.

9421109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (9421091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9284209 + 136900 = 3047^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 9421109 - 2¹⁶ = 9355573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9421129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4710554 + 4710555.

It is an arithmetic number, because the mean of its divisors is an integer number (4710555).

Almost surely, 2^9421109 is an apocalyptic number.

It is an amenable number.

9421109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9421109 is an equidigital number, since it uses as much as digits as its factorization.

9421109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 9421109 is about 3069.3825111902. The cubic root of 9421109 is about 211.2032885761.

The spelling of 9421109 in words is "nine million, four hundred twenty-one thousand, one hundred nine".