3347649 has 20 divisors (see below), whose sum is σ = 5140564. Its totient is φ = 2169504.

The previous prime is 3347647. The next prime is 3347651. The reversal of 3347649 is 9467433.

3347649 is a `hidden beast` number, since 3 + 3 + 4 + 7 + 649 = 666.

It is an interprime number because it is at equal distance from previous prime (3347647) and next prime (3347651).

It can be written as a sum of positive squares in 2 ways, for example, as 1476225 + 1871424 = 1215^2 + 1368^2 .

It is not a de Polignac number, because 3347649 - 2¹ = 3347647 is a prime.

It is a super-2 number, since 2×3347649² = 22413507654402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3347647) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2439 + ... + 3555.

Almost surely, 2^3347649 is an apocalyptic number.

It is an amenable number.

3347649 is a deficient number, since it is larger than the sum of its proper divisors (1792915).

3347649 is a wasteful number, since it uses less digits than its factorization.

3347649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166 (or 1157 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 3347649 is about 1829.6581647947. The cubic root of 3347649 is about 149.5937004649.

The spelling of 3347649 in words is "three million, three hundred forty-seven thousand, six hundred forty-nine".