3669565 has 16 divisors (see below), whose sum is σ = 4691520. Its totient is φ = 2755152.

The previous prime is 3669557. The next prime is 3669583. The reversal of 3669565 is 5659663.

It is not a de Polignac number, because 3669565 - 2³ = 3669557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34242 + ... + 34348.

It is an arithmetic number, because the mean of its divisors is an integer number (293220).

Almost surely, 2^3669565 is an apocalyptic number.

It is an amenable number.

3669565 is a deficient number, since it is larger than the sum of its proper divisors (1021955).

3669565 is an equidigital number, since it uses as much as digits as its factorization.

3669565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 131 counting only the distinct ones).

The product of its digits is 145800, while the sum is 40.

The square root of 3669565 is about 1915.6108686265. The cubic root of 3669565 is about 154.2427862067.

The spelling of 3669565 in words is "three million, six hundred sixty-nine thousand, five hundred sixty-five".