630073 has 4 divisors (see below), whose sum is σ = 647140. Its totient is φ = 613008.

The previous prime is 630067. The next prime is 630101. The reversal of 630073 is 370036.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 94249 = 732^2 + 307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630073.

It is not an unprimeable number, because it can be changed into a prime (630023) 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 3 ways as a sum of consecutive naturals, for example, 8478 + ... + 8551.

It is an arithmetic number, because the mean of its divisors is an integer number (161785).

2⁶³⁰⁰⁷³ is an apocalyptic number.

It is an amenable number.

630073 is a deficient number, since it is larger than the sum of its proper divisors (17067).

630073 is a wasteful number, since it uses less digits than its factorization.

630073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17066.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 630073 is about 793.7713776649. The cubic root of 630073 is about 85.7294998126.

The spelling of 630073 in words is "six hundred thirty thousand, seventy-three".