630806 has 16 divisors (see below), whose sum is σ = 1053648. Its totient is φ = 280800.

The previous prime is 630803. The next prime is 630823. The reversal of 630806 is 608036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896 + ... + 1436.

It is an arithmetic number, because the mean of its divisors is an integer number (65853).

2⁶³⁰⁸⁰⁶ is an apocalyptic number.

630806 is a deficient number, since it is larger than the sum of its proper divisors (422842).

630806 is a wasteful number, since it uses less digits than its factorization.

630806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 630806 is about 794.2329633048. The cubic root of 630806 is about 85.7627316078.

The spelling of 630806 in words is "six hundred thirty thousand, eight hundred six".