630535 has 4 divisors (see below), whose sum is σ = 756648. Its totient is φ = 504424.

The previous prime is 630529. The next prime is 630559. The reversal of 630535 is 535036.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 630535 - 2⁹ = 630023 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

630535 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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, 63049 + ... + 63058.

It is an arithmetic number, because the mean of its divisors is an integer number (189162).

2⁶³⁰⁵³⁵ is an apocalyptic number.

630535 is a deficient number, since it is larger than the sum of its proper divisors (126113).

630535 is a wasteful number, since it uses less digits than its factorization.

630535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126112.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 630535 is about 794.0623401220. The cubic root of 630535 is about 85.7504483653.

The spelling of 630535 in words is "six hundred thirty thousand, five hundred thirty-five".