3661585 has 8 divisors (see below), whose sum is σ = 4625280. Its totient is φ = 2775024.

The previous prime is 3661583. The next prime is 3661591. The reversal of 3661585 is 5851663.

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 3661585 - 2¹ = 3661583 is a prime.

3661585 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3661585.

It is not an unprimeable number, because it can be changed into a prime (3661583) 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, 19177 + ... + 19366.

It is an arithmetic number, because the mean of its divisors is an integer number (578160).

Almost surely, 2^3661585 is an apocalyptic number.

It is an amenable number.

3661585 is a deficient number, since it is larger than the sum of its proper divisors (963695).

3661585 is a wasteful number, since it uses less digits than its factorization.

3661585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38567.

The product of its digits is 21600, while the sum is 34.

The square root of 3661585 is about 1913.5268485182. The cubic root of 3661585 is about 154.1308973098.

The spelling of 3661585 in words is "three million, six hundred sixty-one thousand, five hundred eighty-five".