3406939 has 2 divisors, whose sum is σ = 3406940. Its totient is φ = 3406938.

The previous prime is 3406937. The next prime is 3406943. The reversal of 3406939 is 9396043.

It is a weak prime.

It is an emirp because it is prime and its reverse (9396043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3406939 - 2¹ = 3406937 is a prime.

Together with 3406937, it forms a pair of twin primes.

3406939 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3406937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1703469 + 1703470.

It is an arithmetic number, because the mean of its divisors is an integer number (1703470).

Almost surely, 2^3406939 is an apocalyptic number.

3406939 is a deficient number, since it is larger than the sum of its proper divisors (1).

3406939 is an equidigital number, since it uses as much as digits as its factorization.

3406939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 3406939 is about 1845.7895329641. The cubic root of 3406939 is about 150.4716855671.

The spelling of 3406939 in words is "three million, four hundred six thousand, nine hundred thirty-nine".