530987609 has 2 divisors, whose sum is σ = 530987610. Its totient is φ = 530987608.

The previous prime is 530987563. The next prime is 530987641. The reversal of 530987609 is 906789035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529138009 + 1849600 = 23003^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 530987609 - 2¹² = 530983513 is a prime.

It is not a weakly prime, because it can be changed into another prime (530987309) 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 as a sum of consecutive naturals, namely, 265493804 + 265493805.

It is an arithmetic number, because the mean of its divisors is an integer number (265493805).

Almost surely, 2^530987609 is an apocalyptic number.

It is an amenable number.

530987609 is a deficient number, since it is larger than the sum of its proper divisors (1).

530987609 is an equidigital number, since it uses as much as digits as its factorization.

530987609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 530987609 is about 23043.1683802380. The cubic root of 530987609 is about 809.7695879715.

The spelling of 530987609 in words is "five hundred thirty million, nine hundred eighty-seven thousand, six hundred nine".