663208383 has 8 divisors (see below), whose sum is σ = 884483968. Its totient is φ = 442035864.

The previous prime is 663208379. The next prime is 663208391. The reversal of 663208383 is 383802366.

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

It is not a de Polignac number, because 663208383 - 2² = 663208379 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663208283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9235 + ... + 37572.

It is an arithmetic number, because the mean of its divisors is an integer number (110560496).

Almost surely, 2^663208383 is an apocalyptic number.

663208383 is a deficient number, since it is larger than the sum of its proper divisors (221275585).

663208383 is a wasteful number, since it uses less digits than its factorization.

663208383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51533.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 663208383 is about 25752.8325238215. The cubic root of 663208383 is about 872.0673007107.

The spelling of 663208383 in words is "six hundred sixty-three million, two hundred eight thousand, three hundred eighty-three".