630803 has 2 divisors, whose sum is σ = 630804. Its totient is φ = 630802.

The previous prime is 630797. The next prime is 630823. The reversal of 630803 is 308036.

It is an a-pointer prime, because the next prime (630823) can be obtained adding 630803 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630803 - 2¹⁰ = 629779 is a prime.

It is not a weakly prime, because it can be changed into another prime (630823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315401 + 315402.

It is an arithmetic number, because the mean of its divisors is an integer number (315402).

2⁶³⁰⁸⁰³ is an apocalyptic number.

630803 is a deficient number, since it is larger than the sum of its proper divisors (1).

630803 is an equidigital number, since it uses as much as digits as its factorization.

630803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 630803 is about 794.2310746880. The cubic root of 630803 is about 85.7625956502.

Adding to 630803 its reverse (308036), we get a palindrome (938839).

The spelling of 630803 in words is "six hundred thirty thousand, eight hundred three".