6663800 has 96 divisors (see below), whose sum is σ = 18280080. Its totient is φ = 2227200.

The previous prime is 6663793. The next prime is 6663809. The reversal of 6663800 is 83666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28484 + ... + 28716.

Almost surely, 2^6663800 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 6663800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9140040).

6663800 is an abundant number, since it is smaller than the sum of its proper divisors (11616280).

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

6663800 is a wasteful number, since it uses less digits than its factorization.

6663800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6663800 is about 2581.4337101696. The cubic root of 6663800 is about 188.1802255425.

The spelling of 6663800 in words is "six million, six hundred sixty-three thousand, eight hundred".