3563641 has 4 divisors (see below), whose sum is σ = 3612532. Its totient is φ = 3514752.

The previous prime is 3563569. The next prime is 3563653. The reversal of 3563641 is 1463653.

3563641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1463653 = 107 ⋅13679.

It can be written as a sum of positive squares in 2 ways, for example, as 1700416 + 1863225 = 1304^2 + 1365^2 .

It is a cyclic number.

It is not a de Polignac number, because 3563641 - 2⁷ = 3563513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3563671) 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 in 3 ways as a sum of consecutive naturals, for example, 24336 + ... + 24481.

It is an arithmetic number, because the mean of its divisors is an integer number (903133).

Almost surely, 2^3563641 is an apocalyptic number.

It is an amenable number.

3563641 is a deficient number, since it is larger than the sum of its proper divisors (48891).

3563641 is an equidigital number, since it uses as much as digits as its factorization.

3563641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48890.

The product of its digits is 6480, while the sum is 28.

The square root of 3563641 is about 1887.7608429036. The cubic root of 3563641 is about 152.7441721298.

The spelling of 3563641 in words is "three million, five hundred sixty-three thousand, six hundred forty-one".