3684509 has 2 divisors, whose sum is σ = 3684510. Its totient is φ = 3684508.

The previous prime is 3684487. The next prime is 3684517. The reversal of 3684509 is 9054863.

3684509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1968409 + 1716100 = 1403^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 3684509 - 2⁸ = 3684253 is a prime.

It is a super-3 number, since 3×3684509³ (a number of 21 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3684539) 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, 1842254 + 1842255.

It is an arithmetic number, because the mean of its divisors is an integer number (1842255).

Almost surely, 2^3684509 is an apocalyptic number.

It is an amenable number.

3684509 is a deficient number, since it is larger than the sum of its proper divisors (1).

3684509 is an equidigital number, since it uses as much as digits as its factorization.

3684509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 3684509 is about 1919.5074889148. The cubic root of 3684509 is about 154.4518829504.

The spelling of 3684509 in words is "three million, six hundred eighty-four thousand, five hundred nine".