6687396 has 27 divisors (see below), whose sum is σ = 16943563. Its totient is φ = 2223960.

The previous prime is 6687391. The next prime is 6687427. The reversal of 6687396 is 6937866.

The square root of 6687396 is 2586.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6687391) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15301 + ... + 15731.

Almost surely, 2^6687396 is an apocalyptic number.

6687396 is the 2586-th square number.

It is an amenable number.

6687396 is an abundant number, since it is smaller than the sum of its proper divisors (10256167).

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

6687396 is a wasteful number, since it uses less digits than its factorization.

6687396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 436 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The cubic root of 6687396 is about 188.4020744359.

The spelling of 6687396 in words is "six million, six hundred eighty-seven thousand, three hundred ninety-six".