3205009 has 2 divisors, whose sum is σ = 3205010. Its totient is φ = 3205008.

The previous prime is 3205003. The next prime is 3205039. The reversal of 3205009 is 9005023.

3205009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3139984 + 65025 = 1772^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 3205009 - 2¹⁷ = 3073937 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3205003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602504 + 1602505.

It is an arithmetic number, because the mean of its divisors is an integer number (1602505).

Almost surely, 2^3205009 is an apocalyptic number.

It is an amenable number.

3205009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3205009 is an equidigital number, since it uses as much as digits as its factorization.

3205009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 3205009 is about 1790.2538926085. The cubic root of 3205009 is about 147.4381086695.

It can be divided in two parts, 320 and 5009, that added together give a square (5329 = 73²).

The spelling of 3205009 in words is "three million, two hundred five thousand, nine".