9485809 has 2 divisors, whose sum is σ = 9485810. Its totient is φ = 9485808.

The previous prime is 9485803. The next prime is 9485831. The reversal of 9485809 is 9085849.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9000000 + 485809 = 3000^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 9485809 - 2⁹ = 9485297 is a prime.

It is not a weakly prime, because it can be changed into another prime (9485803) 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, 4742904 + 4742905.

It is an arithmetic number, because the mean of its divisors is an integer number (4742905).

Almost surely, 2^9485809 is an apocalyptic number.

It is an amenable number.

9485809 is a deficient number, since it is larger than the sum of its proper divisors (1).

9485809 is an equidigital number, since it uses as much as digits as its factorization.

9485809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 9485809 is about 3079.9040569472. The cubic root of 9485809 is about 211.6856695142.

It can be divided in two parts, 9 and 485809, that multiplied together give a square (4372281 = 2091²).

The spelling of 9485809 in words is "nine million, four hundred eighty-five thousand, eight hundred nine".