3684534809 has 2 divisors, whose sum is σ = 3684534810. Its totient is φ = 3684534808.

The previous prime is 3684534793. The next prime is 3684534827. The reversal of 3684534809 is 9084354863.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3050905225 + 633629584 = 55235^2 + 25172^2 .

It is a cyclic number.

It is not a de Polignac number, because 3684534809 - 2⁴ = 3684534793 is a prime.

It is not a weakly prime, because it can be changed into another prime (3684534409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842267404 + 1842267405.

It is an arithmetic number, because the mean of its divisors is an integer number (1842267405).

Almost surely, 2^3684534809 is an apocalyptic number.

It is an amenable number.

3684534809 is a deficient number, since it is larger than the sum of its proper divisors (1).

3684534809 is an equidigital number, since it uses as much as digits as its factorization.

3684534809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The square root of 3684534809 is about 60700.3691010195. The cubic root of 3684534809 is about 1544.5224358097.

The spelling of 3684534809 in words is "three billion, six hundred eighty-four million, five hundred thirty-four thousand, eight hundred nine".