663208382 has 8 divisors (see below), whose sum is σ = 998941152. Its totient is φ = 330228000.

The previous prime is 663208379. The next prime is 663208391. The reversal of 663208382 is 283802366.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687494 + ... + 688457.

It is an arithmetic number, because the mean of its divisors is an integer number (124867644).

Almost surely, 2^663208382 is an apocalyptic number.

663208382 is a deficient number, since it is larger than the sum of its proper divisors (335732770).

663208382 is a wasteful number, since it uses less digits than its factorization.

663208382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376194.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 663208382 is about 25752.8325044062. The cubic root of 663208382 is about 872.0673002724.

The spelling of 663208382 in words is "six hundred sixty-three million, two hundred eight thousand, three hundred eighty-two".