6687124 has 6 divisors (see below), whose sum is σ = 11702474. Its totient is φ = 3343560.

The previous prime is 6687097. The next prime is 6687127. The reversal of 6687124 is 4217866.

It can be written as a sum of positive squares in only one way, i.e., 5290000 + 1397124 = 2300^2 + 1182^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6687124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6687127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835887 + ... + 835894.

Almost surely, 2^6687124 is an apocalyptic number.

It is an amenable number.

6687124 is a deficient number, since it is larger than the sum of its proper divisors (5015350).

6687124 is a wasteful number, since it uses less digits than its factorization.

6687124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671785 (or 1671783 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 6687124 is about 2585.9474085913. The cubic root of 6687124 is about 188.3995200755.

The spelling of 6687124 in words is "six million, six hundred eighty-seven thousand, one hundred twenty-four".