3885565 has 16 divisors (see below), whose sum is σ = 4884480. Its totient is φ = 2963520.

The previous prime is 3885533. The next prime is 3885569. The reversal of 3885565 is 5655883.

It is not a de Polignac number, because 3885565 - 2⁵ = 3885533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3885569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18310 + ... + 18520.

It is an arithmetic number, because the mean of its divisors is an integer number (305280).

Almost surely, 2^3885565 is an apocalyptic number.

It is an amenable number.

3885565 is a deficient number, since it is larger than the sum of its proper divisors (998915).

3885565 is a wasteful number, since it uses less digits than its factorization.

3885565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372.

The product of its digits is 144000, while the sum is 40.

The square root of 3885565 is about 1971.1836545589. The cubic root of 3885565 is about 157.2116501239.

The spelling of 3885565 in words is "three million, eight hundred eighty-five thousand, five hundred sixty-five".