3887565 has 16 divisors (see below), whose sum is σ = 6785856. Its totient is φ = 1884800.

The previous prime is 3887563. The next prime is 3887567. The reversal of 3887565 is 5657883.

It is an interprime number because it is at equal distance from previous prime (3887563) and next prime (3887567).

It is not a de Polignac number, because 3887565 - 2¹ = 3887563 is a prime.

It is a super-2 number, since 2×3887565² = 30226323258450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11616 + ... + 11945.

It is an arithmetic number, because the mean of its divisors is an integer number (424116).

Almost surely, 2^3887565 is an apocalyptic number.

It is an amenable number.

3887565 is a deficient number, since it is larger than the sum of its proper divisors (2898291).

3887565 is a wasteful number, since it uses less digits than its factorization.

3887565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23580.

The product of its digits is 201600, while the sum is 42.

The square root of 3887565 is about 1971.6908986958. The cubic root of 3887565 is about 157.2386191205.

The spelling of 3887565 in words is "three million, eight hundred eighty-seven thousand, five hundred sixty-five".