3665505 has 8 divisors (see below), whose sum is σ = 5864832. Its totient is φ = 1954928.

The previous prime is 3665491. The next prime is 3665507. The reversal of 3665505 is 5055663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3665505 - 2⁷ = 3665377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3665507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122169 + ... + 122198.

It is an arithmetic number, because the mean of its divisors is an integer number (733104).

Almost surely, 2^3665505 is an apocalyptic number.

It is an amenable number.

3665505 is a deficient number, since it is larger than the sum of its proper divisors (2199327).

3665505 is a wasteful number, since it uses less digits than its factorization.

3665505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244375.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 3665505 is about 1914.5508611682. The cubic root of 3665505 is about 154.1858805693.

The spelling of 3665505 in words is "three million, six hundred sixty-five thousand, five hundred five".