630663 has 16 divisors (see below), whose sum is σ = 950400. Its totient is φ = 368480.

The previous prime is 630659. The next prime is 630677. The reversal of 630663 is 366036.

It is a cyclic number.

It is not a de Polignac number, because 630663 - 2² = 630659 is a prime.

630663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628 + ... + 1286.

It is an arithmetic number, because the mean of its divisors is an integer number (59400).

2⁶³⁰⁶⁶³ is an apocalyptic number.

630663 is a deficient number, since it is larger than the sum of its proper divisors (319737).

630663 is a wasteful number, since it uses less digits than its factorization.

630663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 630663 is about 794.1429342379. The cubic root of 630663 is about 85.7562504829.

Adding to 630663 its reverse (366036), we get a palindrome (996699).

The spelling of 630663 in words is "six hundred thirty thousand, six hundred sixty-three".