3645611 has 2 divisors, whose sum is σ = 3645612. Its totient is φ = 3645610.

The previous prime is 3645589. The next prime is 3645623. The reversal of 3645611 is 1165463.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3645611 - 2¹⁰ = 3644587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3641611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822805 + 1822806.

It is an arithmetic number, because the mean of its divisors is an integer number (1822806).

Almost surely, 2^3645611 is an apocalyptic number.

3645611 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645611 is an equidigital number, since it uses as much as digits as its factorization.

3645611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 3645611 is about 1909.3483181442. The cubic root of 3645611 is about 153.9064338588.

The spelling of 3645611 in words is "three million, six hundred forty-five thousand, six hundred eleven".