3665575 has 12 divisors (see below), whose sum is σ = 4785160. Its totient is φ = 2777760.

The previous prime is 3665573. The next prime is 3665581. The reversal of 3665575 is 5755663.

It is not a de Polignac number, because 3665575 - 2¹ = 3665573 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

3665575 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3384 + ... + 4333.

Almost surely, 2^3665575 is an apocalyptic number.

3665575 is a deficient number, since it is larger than the sum of its proper divisors (1119585).

3665575 is a wasteful number, since it uses less digits than its factorization.

3665575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746 (or 7741 counting only the distinct ones).

The product of its digits is 94500, while the sum is 37.

The square root of 3665575 is about 1914.5691421309. The cubic root of 3665575 is about 154.1868620569.

The spelling of 3665575 in words is "three million, six hundred sixty-five thousand, five hundred seventy-five".