630065 has 4 divisors (see below), whose sum is σ = 756084. Its totient is φ = 504048.

The previous prime is 630043. The next prime is 630067. The reversal of 630065 is 560036.

630065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 110224 + 519841 = 332^2 + 721^2 .

It is a cyclic number.

It is not a de Polignac number, because 630065 - 2¹² = 625969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (630067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63002 + ... + 63011.

It is an arithmetic number, because the mean of its divisors is an integer number (189021).

2⁶³⁰⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

630065 is a deficient number, since it is larger than the sum of its proper divisors (126019).

630065 is a wasteful number, since it uses less digits than its factorization.

630065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126018.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 630065 is about 793.7663384145. The cubic root of 630065 is about 85.7291369769.

The spelling of 630065 in words is "six hundred thirty thousand, sixty-five".