3489309 has 18 divisors (see below), whose sum is σ = 5231226. Its totient is φ = 2241120.

The previous prime is 3489287. The next prime is 3489347. The reversal of 3489309 is 9039843.

3489309 is a `hidden beast` number, since 348 + 9 + 309 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 356409 + 3132900 = 597^2 + 1770^2 .

It is not a de Polignac number, because 3489309 - 2⁸ = 3489053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3489349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7339 + ... + 7799.

Almost surely, 2^3489309 is an apocalyptic number.

It is an amenable number.

3489309 is a deficient number, since it is larger than the sum of its proper divisors (1741917).

3489309 is a wasteful number, since it uses less digits than its factorization.

3489309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3489309 is about 1867.9692181618. The cubic root of 3489309 is about 151.6746996242.

The spelling of 3489309 in words is "three million, four hundred eighty-nine thousand, three hundred nine".