3563689 has 4 divisors (see below), whose sum is σ = 3718656. Its totient is φ = 3408724.

The previous prime is 3563671. The next prime is 3563699. The reversal of 3563689 is 9863653.

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: 9863653 = 337 ⋅29269.

It is a cyclic number.

It is not a de Polignac number, because 3563689 - 2⁵ = 3563657 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, 77449 + ... + 77494.

It is an arithmetic number, because the mean of its divisors is an integer number (929664).

Almost surely, 2^3563689 is an apocalyptic number.

It is an amenable number.

3563689 is a deficient number, since it is larger than the sum of its proper divisors (154967).

3563689 is a wasteful number, since it uses less digits than its factorization.

3563689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154966.

The product of its digits is 116640, while the sum is 40.

The square root of 3563689 is about 1887.7735563356. The cubic root of 3563689 is about 152.7448579160.

The spelling of 3563689 in words is "three million, five hundred sixty-three thousand, six hundred eighty-nine".