6870687 has 16 divisors (see below), whose sum is σ = 9395040. Its totient is φ = 4465152.

The previous prime is 6870683. The next prime is 6870691. The reversal of 6870687 is 7860786.

6870687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6870683) and next prime (6870691).

It is not a de Polignac number, because 6870687 - 2² = 6870683 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6870683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29889 + ... + 30117.

It is an arithmetic number, because the mean of its divisors is an integer number (587190).

Almost surely, 2^6870687 is an apocalyptic number.

6870687 is a deficient number, since it is larger than the sum of its proper divisors (2524353).

6870687 is a wasteful number, since it uses less digits than its factorization.

6870687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 6870687 is about 2621.1995345643. The cubic root of 6870687 is about 190.1078519712.

Subtracting 6870687 from its reverse (7860786), we obtain a palindrome (990099).

It can be divided in two parts, 6870 and 687, that added together give a palindrome (7557).

The spelling of 6870687 in words is "six million, eight hundred seventy thousand, six hundred eighty-seven".