630447 has 8 divisors (see below), whose sum is σ = 867840. Its totient is φ = 406680.

The previous prime is 630433. The next prime is 630451. The reversal of 630447 is 744036.

630447 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 630447 - 2⁷ = 630319 is a prime.

630447 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630467) 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 7 ways as a sum of consecutive naturals, for example, 3297 + ... + 3482.

It is an arithmetic number, because the mean of its divisors is an integer number (108480).

2⁶³⁰⁴⁴⁷ is an apocalyptic number.

630447 is a deficient number, since it is larger than the sum of its proper divisors (237393).

630447 is a wasteful number, since it uses less digits than its factorization.

630447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6813.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 630447 is about 794.0069269219. The cubic root of 630447 is about 85.7464589539.

The spelling of 630447 in words is "six hundred thirty thousand, four hundred forty-seven".