3645589 has 2 divisors, whose sum is σ = 3645590. Its totient is φ = 3645588.

The previous prime is 3645581. The next prime is 3645611. The reversal of 3645589 is 9855463.

3645589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3090564 + 555025 = 1758^2 + 745^2 .

It is an emirp because it is prime and its reverse (9855463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3645589 - 2³ = 3645581 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3645581) 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, 1822794 + 1822795.

It is an arithmetic number, because the mean of its divisors is an integer number (1822795).

Almost surely, 2^3645589 is an apocalyptic number.

It is an amenable number.

3645589 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645589 is an equidigital number, since it uses as much as digits as its factorization.

3645589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 40.

The square root of 3645589 is about 1909.3425570075. The cubic root of 3645589 is about 153.9061242675.

The spelling of 3645589 in words is "three million, six hundred forty-five thousand, five hundred eighty-nine".