6987743 has 6 divisors (see below), whose sum is σ = 8128656. Its totient is φ = 5989452.

The previous prime is 6987737. The next prime is 6987751. The reversal of 6987743 is 3477896.

It is not a de Polignac number, because 6987743 - 2⁴ = 6987727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6987694 and 6987703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71255 + ... + 71352.

It is an arithmetic number, because the mean of its divisors is an integer number (1354776).

Almost surely, 2^6987743 is an apocalyptic number.

6987743 is a deficient number, since it is larger than the sum of its proper divisors (1140913).

6987743 is a wasteful number, since it uses less digits than its factorization.

6987743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142621 (or 142614 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 6987743 is about 2643.4339409185. The cubic root of 6987743 is about 191.1814016299.

The spelling of 6987743 in words is "six million, nine hundred eighty-seven thousand, seven hundred forty-three".