704504209 has 2 divisors, whose sum is σ = 704504210. Its totient is φ = 704504208.

The previous prime is 704504201. The next prime is 704504341. The reversal of 704504209 is 902405407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 617025600 + 87478609 = 24840^2 + 9353^2 .

It is a cyclic number.

It is not a de Polignac number, because 704504209 - 2³ = 704504201 is a prime.

It is not a weakly prime, because it can be changed into another prime (704504201) 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, 352252104 + 352252105.

It is an arithmetic number, because the mean of its divisors is an integer number (352252105).

Almost surely, 2^704504209 is an apocalyptic number.

It is an amenable number.

704504209 is a deficient number, since it is larger than the sum of its proper divisors (1).

704504209 is an equidigital number, since it uses as much as digits as its factorization.

704504209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 704504209 is about 26542.4981680323. The cubic root of 704504209 is about 889.8043625872.

The spelling of 704504209 in words is "seven hundred four million, five hundred four thousand, two hundred nine".