3887365 has 4 divisors (see below), whose sum is σ = 4664844. Its totient is φ = 3109888.

The previous prime is 3887357. The next prime is 3887383. The reversal of 3887365 is 5637883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5637883 = 89 ⋅63347.

It can be written as a sum of positive squares in 2 ways, for example, as 1595169 + 2292196 = 1263^2 + 1514^2 .

It is a cyclic number.

It is not a de Polignac number, because 3887365 - 2³ = 3887357 is a prime.

It is a super-2 number, since 2×3887365² = 30223213286450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388732 + ... + 388741.

It is an arithmetic number, because the mean of its divisors is an integer number (1166211).

Almost surely, 2^3887365 is an apocalyptic number.

It is an amenable number.

3887365 is a deficient number, since it is larger than the sum of its proper divisors (777479).

3887365 is an equidigital number, since it uses as much as digits as its factorization.

3887365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777478.

The product of its digits is 120960, while the sum is 40.

The square root of 3887365 is about 1971.6401801546. The cubic root of 3887365 is about 157.2359226371.

The spelling of 3887365 in words is "three million, eight hundred eighty-seven thousand, three hundred sixty-five".