3887988 has 24 divisors (see below), whose sum is σ = 9770208. Its totient is φ = 1196256.

The previous prime is 3887971. The next prime is 3887993. The reversal of 3887988 is 8897883.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3887988.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12306 + ... + 12617.

It is an arithmetic number, because the mean of its divisors is an integer number (407092).

Almost surely, 2^3887988 is an apocalyptic number.

It is an amenable number.

3887988 is an abundant number, since it is smaller than the sum of its proper divisors (5882220).

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

3887988 is a wasteful number, since it uses less digits than its factorization.

3887988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24943 (or 24941 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 3887988 is about 1971.7981641132. The cubic root of 3887988 is about 157.2443218782.

The spelling of 3887988 in words is "three million, eight hundred eighty-seven thousand, nine hundred eighty-eight".