630595 has 16 divisors (see below), whose sum is σ = 887040. Its totient is φ = 421344.

The previous prime is 630593. The next prime is 630607. The reversal of 630595 is 595036.

It is a happy number.

It is not a de Polignac number, because 630595 - 2¹ = 630593 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (630593) 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 15 ways as a sum of consecutive naturals, for example, 1296 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (55440).

2⁶³⁰⁵⁹⁵ is an apocalyptic number.

630595 is a deficient number, since it is larger than the sum of its proper divisors (256445).

630595 is a wasteful number, since it uses less digits than its factorization.

630595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 630595 is about 794.1001196323. The cubic root of 630595 is about 85.7531682057.

It can be divided in two parts, 6305 and 95, that added together give a square (6400 = 80²).

The spelling of 630595 in words is "six hundred thirty thousand, five hundred ninety-five".