6687132 has 12 divisors (see below), whose sum is σ = 15603336. Its totient is φ = 2229040.

The previous prime is 6687127. The next prime is 6687133. The reversal of 6687132 is 2317866.

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

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6687093 and 6687102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6687133) 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, 278619 + ... + 278642.

It is an arithmetic number, because the mean of its divisors is an integer number (1300278).

Almost surely, 2^6687132 is an apocalyptic number.

It is an amenable number.

6687132 is an abundant number, since it is smaller than the sum of its proper divisors (8916204).

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

6687132 is a wasteful number, since it uses less digits than its factorization.

6687132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557268 (or 557266 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 6687132 is about 2585.9489554127. The cubic root of 6687132 is about 188.3995952047.

The spelling of 6687132 in words is "six million, six hundred eighty-seven thousand, one hundred thirty-two".