3438649 has 2 divisors, whose sum is σ = 3438650. Its totient is φ = 3438648.

The previous prime is 3438647. The next prime is 3438671. The reversal of 3438649 is 9468343.

3438649 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., 2958400 + 480249 = 1720^2 + 693^2 .

It is an emirp because it is prime and its reverse (9468343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3438649 - 2¹ = 3438647 is a prime.

Together with 3438647, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 3¹² + 4⁷ + 3¹² + 8⁷ + 6 + 4⁹ + 9² .

3438649 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3438647) 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, 1719324 + 1719325.

It is an arithmetic number, because the mean of its divisors is an integer number (1719325).

Almost surely, 2^3438649 is an apocalyptic number.

It is an amenable number.

3438649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3438649 is an equidigital number, since it uses as much as digits as its factorization.

3438649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The square root of 3438649 is about 1854.3594581418. The cubic root of 3438649 is about 150.9370818087.

It can be divided in two parts, 34 and 38649, that added together give a palindrome (38683).

The spelling of 3438649 in words is "three million, four hundred thirty-eight thousand, six hundred forty-nine".