6687372 has 12 divisors (see below), whose sum is σ = 15603896. Its totient is φ = 2229120.

The previous prime is 6687367. The next prime is 6687379. The reversal of 6687372 is 2737866.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 6687372.

It is not an unprimeable number, because it can be changed into a prime (6687379) 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, 278629 + ... + 278652.

Almost surely, 2^6687372 is an apocalyptic number.

It is an amenable number.

6687372 is an abundant number, since it is smaller than the sum of its proper divisors (8916524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6687372 is a wasteful number, since it uses less digits than its factorization.

6687372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557288 (or 557286 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 6687372 is about 2585.9953596246. The cubic root of 6687372 is about 188.4018490539.

It can be divided in two parts, 6 and 687372, that added together give a triangular number (687378 = T₁₁₇₂).

The spelling of 6687372 in words is "six million, six hundred eighty-seven thousand, three hundred seventy-two".