3289691 has 2 divisors, whose sum is σ = 3289692. Its totient is φ = 3289690.

The previous prime is 3289661. The next prime is 3289697. The reversal of 3289691 is 1969823.

3289691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3289691 - 2¹⁴ = 3273307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3289697) 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, 1644845 + 1644846.

It is an arithmetic number, because the mean of its divisors is an integer number (1644846).

Almost surely, 2^3289691 is an apocalyptic number.

3289691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3289691 is an equidigital number, since it uses as much as digits as its factorization.

3289691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 3289691 is about 1813.7505341143. The cubic root of 3289691 is about 148.7253623013.

The spelling of 3289691 in words is "three million, two hundred eighty-nine thousand, six hundred ninety-one".