630383 has 4 divisors (see below), whose sum is σ = 678888. Its totient is φ = 581880.

The previous prime is 630353. The next prime is 630391. The reversal of 630383 is 383036.

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

It is not a de Polignac number, because 630383 - 2⁶ = 630319 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 630383.

It is not an unprimeable number, because it can be changed into a prime (630353) 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, 24233 + ... + 24258.

It is an arithmetic number, because the mean of its divisors is an integer number (169722).

2⁶³⁰³⁸³ is an apocalyptic number.

630383 is a deficient number, since it is larger than the sum of its proper divisors (48505).

630383 is a wasteful number, since it uses less digits than its factorization.

630383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48504.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 630383 is about 793.9666239837. The cubic root of 630383 is about 85.7435573306.

The spelling of 630383 in words is "six hundred thirty thousand, three hundred eighty-three".