3909329 has 2 divisors, whose sum is σ = 3909330. Its totient is φ = 3909328.

The previous prime is 3909293. The next prime is 3909341. The reversal of 3909329 is 9239093.

Together with previous prime (3909293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2408704 + 1500625 = 1552^2 + 1225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3909329 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3909359) 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, 1954664 + 1954665.

It is an arithmetic number, because the mean of its divisors is an integer number (1954665).

Almost surely, 2^3909329 is an apocalyptic number.

It is an amenable number.

3909329 is a deficient number, since it is larger than the sum of its proper divisors (1).

3909329 is an equidigital number, since it uses as much as digits as its factorization.

3909329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 3909329 is about 1977.2023164057. The cubic root of 3909329 is about 157.5314995367.

The spelling of 3909329 in words is "three million, nine hundred nine thousand, three hundred twenty-nine".