6663748 has 24 divisors (see below), whose sum is σ = 14353472. Its totient is φ = 2636064.

The previous prime is 6663739. The next prime is 6663749. The reversal of 6663748 is 8473666.

It is a self number, because there is not a number n which added to its sum of digits gives 6663748.

It is not an unprimeable number, because it can be changed into a prime (6663749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8790 + ... + 9517.

Almost surely, 2^6663748 is an apocalyptic number.

It is an amenable number.

6663748 is an abundant number, since it is smaller than the sum of its proper divisors (7689724).

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

6663748 is a wasteful number, since it uses less digits than its factorization.

6663748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18331 (or 18329 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 6663748 is about 2581.4236382276. The cubic root of 6663748 is about 188.1797360622.

The spelling of 6663748 in words is "six million, six hundred sixty-three thousand, seven hundred forty-eight".