3645539 has 2 divisors, whose sum is σ = 3645540. Its totient is φ = 3645538.

The previous prime is 3645533. The next prime is 3645557. The reversal of 3645539 is 9355463.

3645539 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3645539 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3645499 and 3645508.

It is not a weakly prime, because it can be changed into another prime (3645533) 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, 1822769 + 1822770.

It is an arithmetic number, because the mean of its divisors is an integer number (1822770).

Almost surely, 2^3645539 is an apocalyptic number.

3645539 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645539 is an equidigital number, since it uses as much as digits as its factorization.

3645539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 35.

The square root of 3645539 is about 1909.3294634505. The cubic root of 3645539 is about 153.9054206462.

The spelling of 3645539 in words is "three million, six hundred forty-five thousand, five hundred thirty-nine".