530723 has 4 divisors (see below), whose sum is σ = 561960. Its totient is φ = 499488.

The previous prime is 530713. The next prime is 530731. The reversal of 530723 is 327035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327035 = 5 ⋅65407.

It is a cyclic number.

It is not a de Polignac number, because 530723 - 2⁶ = 530659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530695 and 530704.

It is not an unprimeable number, because it can be changed into a prime (530713) 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 3 ways as a sum of consecutive naturals, for example, 15593 + ... + 15626.

It is an arithmetic number, because the mean of its divisors is an integer number (140490).

2⁵³⁰⁷²³ is an apocalyptic number.

530723 is a deficient number, since it is larger than the sum of its proper divisors (31237).

530723 is a wasteful number, since it uses less digits than its factorization.

530723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31236.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 530723 is about 728.5073781370. The cubic root of 530723 is about 80.9635053806.

Adding to 530723 its reverse (327035), we get a palindrome (857758).

The spelling of 530723 in words is "five hundred thirty thousand, seven hundred twenty-three".