8164804309 has 2 divisors, whose sum is σ = 8164804310. Its totient is φ = 8164804308.

The previous prime is 8164804289. The next prime is 8164804321. The reversal of 8164804309 is 9034084618.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5733821284 + 2430983025 = 75722^2 + 49305^2 .

It is a cyclic number.

It is not a de Polignac number, because 8164804309 - 2⁹ = 8164803797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8164804379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4082402154 + 4082402155.

It is an arithmetic number, because the mean of its divisors is an integer number (4082402155).

Almost surely, 2^8164804309 is an apocalyptic number.

It is an amenable number.

8164804309 is a deficient number, since it is larger than the sum of its proper divisors (1).

8164804309 is an equidigital number, since it uses as much as digits as its factorization.

8164804309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 8164804309 is about 90359.3067093811. The cubic root of 8164804309 is about 2013.6404499815.

The spelling of 8164804309 in words is "eight billion, one hundred sixty-four million, eight hundred four thousand, three hundred nine".