6887156 has 12 divisors (see below), whose sum is σ = 12085668. Its totient is φ = 3434112.

The previous prime is 6887149. The next prime is 6887161. The reversal of 6887156 is 6517886.

It can be written as a sum of positive squares in 2 ways, for example, as 1779556 + 5107600 = 1334^2 + 2260^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581 + ... + 3756.

It is an arithmetic number, because the mean of its divisors is an integer number (1007139).

Almost surely, 2^6887156 is an apocalyptic number.

It is an amenable number.

6887156 is a deficient number, since it is larger than the sum of its proper divisors (5198512).

6887156 is a wasteful number, since it uses less digits than its factorization.

6887156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738 (or 4736 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 6887156 is about 2624.3391549112. The cubic root of 6887156 is about 190.2596266029.

The spelling of 6887156 in words is "six million, eight hundred eighty-seven thousand, one hundred fifty-six".