530809389 has 16 divisors (see below), whose sum is σ = 857874240. Its totient is φ = 321702480.

The previous prime is 530809379. The next prime is 530809421. The reversal of 530809389 is 983908035.

530809389 is a `hidden beast` number, since 530 + 80 + 9 + 38 + 9 = 666.

It is not a de Polignac number, because 530809389 - 2¹¹ = 530807341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530809339) 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, 893322 + ... + 893915.

It is an arithmetic number, because the mean of its divisors is an integer number (53617140).

Almost surely, 2^530809389 is an apocalyptic number.

It is an amenable number.

530809389 is a deficient number, since it is larger than the sum of its proper divisors (327064851).

530809389 is a wasteful number, since it uses less digits than its factorization.

530809389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787257 (or 1787251 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 530809389 is about 23039.3009659581. The cubic root of 530809389 is about 809.6789811584.

The spelling of 530809389 in words is "five hundred thirty million, eight hundred nine thousand, three hundred eighty-nine".