6889887 has 8 divisors (see below), whose sum is σ = 10207280. Its totient is φ = 4593240.

The previous prime is 6889873. The next prime is 6889891. The reversal of 6889887 is 7889886.

It is not a de Polignac number, because 6889887 - 2⁶ = 6889823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6889087) 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, 127564 + ... + 127617.

It is an arithmetic number, because the mean of its divisors is an integer number (1275910).

Almost surely, 2^6889887 is an apocalyptic number.

6889887 is a deficient number, since it is larger than the sum of its proper divisors (3317393).

6889887 is a wasteful number, since it uses less digits than its factorization.

6889887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255190 (or 255184 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 6889887 is about 2624.8594248074. The cubic root of 6889887 is about 190.2847714946.

Subtracting 6889887 from its reverse (7889886), we obtain a palindrome (999999).

It can be divided in two parts, 6889 and 887, that added together give a 5-th power (7776 = 6⁵).

The spelling of 6889887 in words is "six million, eight hundred eighty-nine thousand, eight hundred eighty-seven".