3209939 has 2 divisors, whose sum is σ = 3209940. Its totient is φ = 3209938.

The previous prime is 3209933. The next prime is 3209951. The reversal of 3209939 is 9399023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3209939 - 2⁸ = 3209683 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3209899 and 3209908.

It is not a weakly prime, because it can be changed into another prime (3209933) 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, 1604969 + 1604970.

It is an arithmetic number, because the mean of its divisors is an integer number (1604970).

Almost surely, 2^3209939 is an apocalyptic number.

3209939 is a deficient number, since it is larger than the sum of its proper divisors (1).

3209939 is an equidigital number, since it uses as much as digits as its factorization.

3209939 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 3209939 is about 1791.6302631961. The cubic root of 3209939 is about 147.5136672196.

The spelling of 3209939 in words is "three million, two hundred nine thousand, nine hundred thirty-nine".