6682687 has 4 divisors (see below), whose sum is σ = 7290216. Its totient is φ = 6075160.

The previous prime is 6682609. The next prime is 6682693. The reversal of 6682687 is 7862866.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6682687 - 2¹⁵ = 6649919 is a prime.

It is a Duffinian number.

6682687 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6682087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303748 + ... + 303769.

It is an arithmetic number, because the mean of its divisors is an integer number (1822554).

Almost surely, 2^6682687 is an apocalyptic number.

6682687 is a deficient number, since it is larger than the sum of its proper divisors (607529).

6682687 is a wasteful number, since it uses less digits than its factorization.

6682687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607528.

The product of its digits is 193536, while the sum is 43.

The square root of 6682687 is about 2585.0893601576. The cubic root of 6682687 is about 188.3578422868.

The spelling of 6682687 in words is "six million, six hundred eighty-two thousand, six hundred eighty-seven".