630507 has 4 divisors (see below), whose sum is σ = 840680. Its totient is φ = 420336.

The previous prime is 630493. The next prime is 630521. The reversal of 630507 is 705036.

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

It is an interprime number because it is at equal distance from previous prime (630493) and next prime (630521).

It is not a de Polignac number, because 630507 - 2¹⁰ = 629483 is a prime.

It is an Ulam number.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630577) 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 in 3 ways as a sum of consecutive naturals, for example, 105082 + ... + 105087.

It is an arithmetic number, because the mean of its divisors is an integer number (210170).

2⁶³⁰⁵⁰⁷ is an apocalyptic number.

630507 is a deficient number, since it is larger than the sum of its proper divisors (210173).

630507 is a wasteful number, since it uses less digits than its factorization.

630507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210172.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 630507 is about 794.0447090687. The cubic root of 630507 is about 85.7491790474.

Subtracting 630507 from its reverse (705036), we obtain a square (74529 = 273²).

The spelling of 630507 in words is "six hundred thirty thousand, five hundred seven".