530812689 has 16 divisors (see below), whose sum is σ = 788520960. Its totient is φ = 314858960.

The previous prime is 530812687. The next prime is 530812717. The reversal of 530812689 is 986218035.

It is a cyclic number.

It is not a de Polignac number, because 530812689 - 2¹ = 530812687 is a prime.

It is a super-2 number, since 2×530812689² = 563524221606821442, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 530812689.

It is not an unprimeable number, because it can be changed into a prime (530812687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169569 + ... + 172670.

It is an arithmetic number, because the mean of its divisors is an integer number (49282560).

Almost surely, 2^530812689 is an apocalyptic number.

It is an amenable number.

530812689 is a deficient number, since it is larger than the sum of its proper divisors (257708271).

530812689 is a wasteful number, since it uses less digits than its factorization.

530812689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342300.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 530812689 is about 23039.3725826030. The cubic root of 530812689 is about 809.6806590583.

The spelling of 530812689 in words is "five hundred thirty million, eight hundred twelve thousand, six hundred eighty-nine".