3343649 has 2 divisors, whose sum is σ = 3343650. Its totient is φ = 3343648.

The previous prime is 3343631. The next prime is 3343651. The reversal of 3343649 is 9463433.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3265249 + 78400 = 1807^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 3343649 - 2¹⁶ = 3278113 is a prime.

It is a super-2 number, since 2×3343649² = 22359977270402, which contains 22 as substring.

Together with 3343651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3343699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1671824 + 1671825.

It is an arithmetic number, because the mean of its divisors is an integer number (1671825).

Almost surely, 2^3343649 is an apocalyptic number.

It is an amenable number.

3343649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3343649 is an equidigital number, since it uses as much as digits as its factorization.

3343649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 32.

The square root of 3343649 is about 1828.5647377110. The cubic root of 3343649 is about 149.5340951233.

The spelling of 3343649 in words is "three million, three hundred forty-three thousand, six hundred forty-nine".