3689565 has 32 divisors (see below), whose sum is σ = 6566400. Its totient is φ = 1753920.

The previous prime is 3689551. The next prime is 3689573. The reversal of 3689565 is 5659863.

3689565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3689565 - 2⁶ = 3689501 is a prime.

It is a super-2 number, since 2×3689565² = 27225779778450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 9546 + ... + 9924.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

Almost surely, 2^3689565 is an apocalyptic number.

It is an amenable number.

3689565 is a deficient number, since it is larger than the sum of its proper divisors (2876835).

3689565 is a wasteful number, since it uses less digits than its factorization.

3689565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457.

The product of its digits is 194400, while the sum is 42.

The square root of 3689565 is about 1920.8240419153. The cubic root of 3689565 is about 154.5224985826.

The spelling of 3689565 in words is "three million, six hundred eighty-nine thousand, five hundred sixty-five".