3278939 has 2 divisors, whose sum is σ = 3278940. Its totient is φ = 3278938.

The previous prime is 3278927. The next prime is 3278959. The reversal of 3278939 is 9398723.

It is a weak prime.

It is an emirp because it is prime and its reverse (9398723) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3278939 - 2⁸ = 3278683 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3278896 and 3278905.

It is not a weakly prime, because it can be changed into another prime (3278959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1639469 + 1639470.

It is an arithmetic number, because the mean of its divisors is an integer number (1639470).

Almost surely, 2^3278939 is an apocalyptic number.

3278939 is a deficient number, since it is larger than the sum of its proper divisors (1).

3278939 is an equidigital number, since it uses as much as digits as its factorization.

3278939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 41.

The square root of 3278939 is about 1810.7840843126. The cubic root of 3278939 is about 148.5631545213.

The spelling of 3278939 in words is "three million, two hundred seventy-eight thousand, nine hundred thirty-nine".