630317 has 4 divisors (see below), whose sum is σ = 643776. Its totient is φ = 616860.

The previous prime is 630307. The next prime is 630319. The reversal of 630317 is 713036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 630317.

It is not an unprimeable number, because it can be changed into a prime (630319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6659 + ... + 6752.

It is an arithmetic number, because the mean of its divisors is an integer number (160944).

2⁶³⁰³¹⁷ is an apocalyptic number.

It is an amenable number.

630317 is a deficient number, since it is larger than the sum of its proper divisors (13459).

630317 is a wasteful number, since it uses less digits than its factorization.

630317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13458.

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

The square root of 630317 is about 793.9250594357. The cubic root of 630317 is about 85.7405648259.

The spelling of 630317 in words is "six hundred thirty thousand, three hundred seventeen".