530722397 has 4 divisors (see below), whose sum is σ = 536685660. Its totient is φ = 524759136.

The previous prime is 530722393. The next prime is 530722403. The reversal of 530722397 is 793227035.

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 169494361 + 361228036 = 13019^2 + 19006^2 .

It is a cyclic number.

It is not a de Polignac number, because 530722397 - 2² = 530722393 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 530722397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530722393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2981498 + ... + 2981675.

It is an arithmetic number, because the mean of its divisors is an integer number (134171415).

Almost surely, 2^530722397 is an apocalyptic number.

It is an amenable number.

530722397 is a deficient number, since it is larger than the sum of its proper divisors (5963263).

530722397 is an equidigital number, since it uses as much as digits as its factorization.

530722397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5963262.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 530722397 is about 23037.4129841004. The cubic root of 530722397 is about 809.6347471744.

The spelling of 530722397 in words is "five hundred thirty million, seven hundred twenty-two thousand, three hundred ninety-seven".