104008309 has 2 divisors, whose sum is σ = 104008310. Its totient is φ = 104008308.

The previous prime is 104008189. The next prime is 104008339. The reversal of 104008309 is 903800401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90155025 + 13853284 = 9495^2 + 3722^2 .

It is a cyclic number.

It is not a de Polignac number, because 104008309 - 2¹¹ = 104006261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104008339) 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, 52004154 + 52004155.

It is an arithmetic number, because the mean of its divisors is an integer number (52004155).

Almost surely, 2^104008309 is an apocalyptic number.

It is an amenable number.

104008309 is a deficient number, since it is larger than the sum of its proper divisors (1).

104008309 is an equidigital number, since it uses as much as digits as its factorization.

104008309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 104008309 is about 10198.4464012907. The cubic root of 104008309 is about 470.2794610824.

The spelling of 104008309 in words is "one hundred four million, eight thousand, three hundred nine".