6687368 has 16 divisors (see below), whose sum is σ = 12655500. Its totient is φ = 3312576.

The previous prime is 6687367. The next prime is 6687379. The reversal of 6687368 is 8637866.

It can be written as a sum of positive squares in 2 ways, for example, as 5769604 + 917764 = 2402^2 + 958^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6687367) 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, 2963 + ... + 4706.

Almost surely, 2^6687368 is an apocalyptic number.

It is an amenable number.

6687368 is a deficient number, since it is larger than the sum of its proper divisors (5968132).

6687368 is a wasteful number, since it uses less digits than its factorization.

6687368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7784 (or 7780 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 6687368 is about 2585.9945862279. The cubic root of 6687368 is about 188.4018114902.

The spelling of 6687368 in words is "six million, six hundred eighty-seven thousand, three hundred sixty-eight".