3563609 has 4 divisors (see below), whose sum is σ = 4072704. Its totient is φ = 3054516.

The previous prime is 3563569. The next prime is 3563653. The reversal of 3563609 is 9063653.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9063653 = 1223 ⋅7411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3563609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3563699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254537 + ... + 254550.

It is an arithmetic number, because the mean of its divisors is an integer number (1018176).

Almost surely, 2^3563609 is an apocalyptic number.

It is an amenable number.

3563609 is a deficient number, since it is larger than the sum of its proper divisors (509095).

3563609 is an equidigital number, since it uses as much as digits as its factorization.

3563609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509094.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 3563609 is about 1887.7523672346. The cubic root of 3563609 is about 152.7437149356.

The spelling of 3563609 in words is "three million, five hundred sixty-three thousand, six hundred nine".