3887855 has 4 divisors (see below), whose sum is σ = 4665432. Its totient is φ = 3110280.

The previous prime is 3887843. The next prime is 3887861. The reversal of 3887855 is 5587883.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3887855 - 2⁴ = 3887839 is a prime.

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, 388781 + ... + 388790.

It is an arithmetic number, because the mean of its divisors is an integer number (1166358).

Almost surely, 2^3887855 is an apocalyptic number.

3887855 is a deficient number, since it is larger than the sum of its proper divisors (777577).

3887855 is an equidigital number, since it uses as much as digits as its factorization.

3887855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777576.

The product of its digits is 268800, while the sum is 44.

The square root of 3887855 is about 1971.7644382634. The cubic root of 3887855 is about 157.2425288571.

The spelling of 3887855 in words is "three million, eight hundred eighty-seven thousand, eight hundred fifty-five".