8604809 has 2 divisors, whose sum is σ = 8604810. Its totient is φ = 8604808.

The previous prime is 8604797. The next prime is 8604811. The reversal of 8604809 is 9084068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8497225 + 107584 = 2915^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 8604809 - 2¹⁶ = 8539273 is a prime.

Together with 8604811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8604209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4302404 + 4302405.

It is an arithmetic number, because the mean of its divisors is an integer number (4302405).

Almost surely, 2^8604809 is an apocalyptic number.

It is an amenable number.

8604809 is a deficient number, since it is larger than the sum of its proper divisors (1).

8604809 is an equidigital number, since it uses as much as digits as its factorization.

8604809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 8604809 is about 2933.3954728267. The cubic root of 8604809 is about 204.9181430077.

The spelling of 8604809 in words is "eight million, six hundred four thousand, eight hundred nine".