6687488 has 36 divisors (see below), whose sum is σ = 13514928. Its totient is φ = 3302400.

The previous prime is 6687463. The next prime is 6687497. The reversal of 6687488 is 8847866.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38570 + ... + 38742.

Almost surely, 2^6687488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6687488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6757464).

6687488 is an abundant number, since it is smaller than the sum of its proper divisors (6827440).

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

6687488 is a wasteful number, since it uses less digits than its factorization.

6687488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 326 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The square root of 6687488 is about 2586.0177880285. The cubic root of 6687488 is about 188.4029383951.

The spelling of 6687488 in words is "six million, six hundred eighty-seven thousand, four hundred eighty-eight".