3447349 has 2 divisors, whose sum is σ = 3447350. Its totient is φ = 3447348.

The previous prime is 3447347. The next prime is 3447373. The reversal of 3447349 is 9437443.

3447349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2582449 + 864900 = 1607^2 + 930^2 .

It is a cyclic number.

It is not a de Polignac number, because 3447349 - 2¹ = 3447347 is a prime.

Together with 3447347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3447347) 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, 1723674 + 1723675.

It is an arithmetic number, because the mean of its divisors is an integer number (1723675).

Almost surely, 2^3447349 is an apocalyptic number.

It is an amenable number.

3447349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3447349 is an equidigital number, since it uses as much as digits as its factorization.

3447349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 34.

The square root of 3447349 is about 1856.7037997484. The cubic root of 3447349 is about 151.0642680682.

The spelling of 3447349 in words is "three million, four hundred forty-seven thousand, three hundred forty-nine".