3606821789 has 2 divisors, whose sum is σ = 3606821790. Its totient is φ = 3606821788.

The previous prime is 3606821749. The next prime is 3606821809. The reversal of 3606821789 is 9871286063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2580132025 + 1026689764 = 50795^2 + 32042^2 .

It is an emirp because it is prime and its reverse (9871286063) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3606821789 - 2²⁸ = 3338386333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3606821749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1803410894 + 1803410895.

It is an arithmetic number, because the mean of its divisors is an integer number (1803410895).

Almost surely, 2^3606821789 is an apocalyptic number.

It is an amenable number.

3606821789 is a deficient number, since it is larger than the sum of its proper divisors (1).

3606821789 is an equidigital number, since it uses as much as digits as its factorization.

3606821789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 3606821789 is about 60056.8213361313. The cubic root of 3606821789 is about 1533.5863282554.

The spelling of 3606821789 in words is "three billion, six hundred six million, eight hundred twenty-one thousand, seven hundred eighty-nine".