3209009 has 2 divisors, whose sum is σ = 3209010. Its totient is φ = 3209008.

The previous prime is 3208999. The next prime is 3209033. The reversal of 3209009 is 9009023.

3209009 is nontrivially palindromic in base 11.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2334784 + 874225 = 1528^2 + 935^2 .

It is an emirp because it is prime and its reverse (9009023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3209009 - 2¹² = 3204913 is a prime.

It is not a weakly prime, because it can be changed into another prime (3209509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1604504 + 1604505.

It is an arithmetic number, because the mean of its divisors is an integer number (1604505).

Almost surely, 2^3209009 is an apocalyptic number.

It is an amenable number.

3209009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3209009 is an equidigital number, since it uses as much as digits as its factorization.

3209009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 3209009 is about 1791.3707042374. The cubic root of 3209009 is about 147.4994197047.

The spelling of 3209009 in words is "three million, two hundred nine thousand, nine".