6887743 has 4 divisors (see below), whose sum is σ = 6893208. Its totient is φ = 6882280.

The previous prime is 6887681. The next prime is 6887753. The reversal of 6887743 is 3477886.

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: 3477886 = 2 ⋅1738943.

It is a cyclic number.

It is not a de Polignac number, because 6887743 - 2¹⁷ = 6756671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6887743.

It is a congruent 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228 + ... + 3718.

It is an arithmetic number, because the mean of its divisors is an integer number (1723302).

Almost surely, 2^6887743 is an apocalyptic number.

6887743 is a deficient number, since it is larger than the sum of its proper divisors (5465).

6887743 is a wasteful number, since it uses less digits than its factorization.

6887743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5464.

The product of its digits is 225792, while the sum is 43.

The square root of 6887743 is about 2624.4509902073. The cubic root of 6887743 is about 190.2650317962.

The spelling of 6887743 in words is "six million, eight hundred eighty-seven thousand, seven hundred forty-three".