6888887 has 8 divisors (see below), whose sum is σ = 7389360. Its totient is φ = 6402240.

The previous prime is 6888877. The next prime is 6888941. The reversal of 6888887 is 7888886.

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

It is not a de Polignac number, because 6888887 - 2¹⁰ = 6887863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6888857) 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, 2414 + ... + 4427.

It is an arithmetic number, because the mean of its divisors is an integer number (923670).

Almost surely, 2^6888887 is an apocalyptic number.

6888887 is a deficient number, since it is larger than the sum of its proper divisors (500473).

6888887 is a wasteful number, since it uses less digits than its factorization.

6888887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913.

The product of its digits is 1376256, while the sum is 53.

The square root of 6888887 is about 2624.6689315036. The cubic root of 6888887 is about 190.2755650554.

Subtracting 6888887 from its reverse (7888886), we obtain a palindrome (999999).

The spelling of 6888887 in words is "six million, eight hundred eighty-eight thousand, eight hundred eighty-seven".