3887868 has 24 divisors (see below), whose sum is σ = 9244368. Its totient is φ = 1271296.

The previous prime is 3887867. The next prime is 3887881. The reversal of 3887868 is 8687883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887861) 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, 2421 + ... + 3692.

It is an arithmetic number, because the mean of its divisors is an integer number (385182).

Almost surely, 2^3887868 is an apocalyptic number.

It is an amenable number.

3887868 is an abundant number, since it is smaller than the sum of its proper divisors (5356500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3887868 is a wasteful number, since it uses less digits than its factorization.

3887868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6173 (or 6171 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 3887868 is about 1971.7677348004. The cubic root of 3887868 is about 157.2427041166.

It can be divided in two parts, 388 and 7868, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 3887868 in words is "three million, eight hundred eighty-seven thousand, eight hundred sixty-eight".