630613663 has 8 divisors (see below), whose sum is σ = 643180176. Its totient is φ = 618072000.

The previous prime is 630613651. The next prime is 630613679. The reversal of 630613663 is 366316036.

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

It is a cyclic number.

It is not a de Polignac number, because 630613663 - 2⁵ = 630613631 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 (630613463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 50043 + ... + 61363.

It is an arithmetic number, because the mean of its divisors is an integer number (80397522).

Almost surely, 2^630613663 is an apocalyptic number.

630613663 is a deficient number, since it is larger than the sum of its proper divisors (12566513).

630613663 is a wasteful number, since it uses less digits than its factorization.

630613663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12425.

The product of its (nonzero) digits is 34992, while the sum is 34.

The square root of 630613663 is about 25112.0222801749. The cubic root of 630613663 is about 857.5401417685.

Adding to 630613663 its reverse (366316036), we get a palindrome (996929699).

The spelling of 630613663 in words is "six hundred thirty million, six hundred thirteen thousand, six hundred sixty-three".