663700448 has 24 divisors (see below), whose sum is σ = 1308041280. Its totient is φ = 331499520.

The previous prime is 663700441. The next prime is 663700463. The reversal of 663700448 is 844007366.

It is a happy number.

663700448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663700441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21248 + ... + 42176.

It is an arithmetic number, because the mean of its divisors is an integer number (54501720).

Almost surely, 2^663700448 is an apocalyptic number.

It is an amenable number.

663700448 is a deficient number, since it is larger than the sum of its proper divisors (644340832).

663700448 is a wasteful number, since it uses less digits than its factorization.

663700448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21930 (or 21922 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 663700448 is about 25762.3843617007. The cubic root of 663700448 is about 872.2829230925.

The spelling of 663700448 in words is "six hundred sixty-three million, seven hundred thousand, four hundred forty-eight".