3887889 has 8 divisors (see below), whose sum is σ = 5257152. Its totient is φ = 2555280.

The previous prime is 3887881. The next prime is 3887893. The reversal of 3887889 is 9887883.

3887889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3887889 - 2³ = 3887881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3887881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8914 + ... + 9339.

It is an arithmetic number, because the mean of its divisors is an integer number (657144).

Almost surely, 2^3887889 is an apocalyptic number.

It is an amenable number.

3887889 is a deficient number, since it is larger than the sum of its proper divisors (1369263).

3887889 is a wasteful number, since it uses less digits than its factorization.

3887889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18327.

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

The square root of 3887889 is about 1971.7730599641. The cubic root of 3887889 is about 157.2429872273.

It can be divided in two parts, 3887 and 889, that multiplied together give a palindrome (3455543).

The spelling of 3887889 in words is "three million, eight hundred eighty-seven thousand, eight hundred eighty-nine".