6887723 has 4 divisors (see below), whose sum is σ = 6893040. Its totient is φ = 6882408.

The previous prime is 6887681. The next prime is 6887753. The reversal of 6887723 is 3277886.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3277886 = 2 ⋅1638943.

It is a cyclic number.

It is not a de Polignac number, because 6887723 - 2¹² = 6883627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6887753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698 + ... + 3776.

It is an arithmetic number, because the mean of its divisors is an integer number (1723260).

Almost surely, 2^6887723 is an apocalyptic number.

6887723 is a deficient number, since it is larger than the sum of its proper divisors (5317).

6887723 is a wasteful number, since it uses less digits than its factorization.

6887723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316.

The product of its digits is 112896, while the sum is 41.

The square root of 6887723 is about 2624.4471798838. The cubic root of 6887723 is about 190.2648476379.

The spelling of 6887723 in words is "six million, eight hundred eighty-seven thousand, seven hundred twenty-three".