630713 has 2 divisors, whose sum is σ = 630714. Its totient is φ = 630712.

The previous prime is 630709. The next prime is 630719. The reversal of 630713 is 317036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426409 + 204304 = 653^2 + 452^2 .

It is a cyclic number.

It is not a de Polignac number, because 630713 - 2² = 630709 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (630719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315356 + 315357.

It is an arithmetic number, because the mean of its divisors is an integer number (315357).

2⁶³⁰⁷¹³ is an apocalyptic number.

It is an amenable number.

630713 is a deficient number, since it is larger than the sum of its proper divisors (1).

630713 is an equidigital number, since it uses as much as digits as its factorization.

630713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 630713 is about 794.1744140930. The cubic root of 630713 is about 85.7585167219.

Adding to 630713 its reverse (317036), we get a palindrome (947749).

The spelling of 630713 in words is "six hundred thirty thousand, seven hundred thirteen".