530642843 has 4 divisors (see below), whose sum is σ = 539341968. Its totient is φ = 521943720.

The previous prime is 530642839. The next prime is 530642891. The reversal of 530642843 is 348246035.

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

It is a cyclic number.

It is not a de Polignac number, because 530642843 - 2² = 530642839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530641843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4349471 + ... + 4349592.

It is an arithmetic number, because the mean of its divisors is an integer number (134835492).

Almost surely, 2^530642843 is an apocalyptic number.

530642843 is a deficient number, since it is larger than the sum of its proper divisors (8699125).

530642843 is an equidigital number, since it uses as much as digits as its factorization.

530642843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8699124.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 530642843 is about 23035.6862932277. The cubic root of 530642843 is about 809.5942910580.

Adding to 530642843 its reverse (348246035), we get a palindrome (878888878).

The spelling of 530642843 in words is "five hundred thirty million, six hundred forty-two thousand, eight hundred forty-three".