32009609 has 2 divisors, whose sum is σ = 32009610. Its totient is φ = 32009608.

The previous prime is 32009603. The next prime is 32009611. The reversal of 32009609 is 90690023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29214025 + 2795584 = 5405^2 + 1672^2 .

It is a cyclic number.

It is not a de Polignac number, because 32009609 - 2¹² = 32005513 is a prime.

Together with 32009611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32009603) 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, 16004804 + 16004805.

It is an arithmetic number, because the mean of its divisors is an integer number (16004805).

Almost surely, 2^32009609 is an apocalyptic number.

It is an amenable number.

32009609 is a deficient number, since it is larger than the sum of its proper divisors (1).

32009609 is an equidigital number, since it uses as much as digits as its factorization.

32009609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 32009609 is about 5657.7035093755. The cubic root of 32009609 is about 317.5119849982.

The spelling of 32009609 in words is "thirty-two million, nine thousand, six hundred nine".