6681800 has 24 divisors (see below), whose sum is σ = 15535650. Its totient is φ = 2672640.

The previous prime is 6681791. The next prime is 6681817. The reversal of 6681800 is 81866.

It can be written as a sum of positive squares in 3 ways, for example, as 3771364 + 2910436 = 1942^2 + 1706^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16505 + ... + 16904.

Almost surely, 2^6681800 is an apocalyptic number.

It is an amenable number.

6681800 is an abundant number, since it is smaller than the sum of its proper divisors (8853850).

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

6681800 is a wasteful number, since it uses less digits than its factorization.

6681800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33425 (or 33416 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 6681800 is about 2584.9177936639. The cubic root of 6681800 is about 188.3495082739.

The spelling of 6681800 in words is "six million, six hundred eighty-one thousand, eight hundred".