530434909 has 2 divisors, whose sum is σ = 530434910. Its totient is φ = 530434908.

The previous prime is 530434889. The next prime is 530434937. The reversal of 530434909 is 909434035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 414936900 + 115498009 = 20370^2 + 10747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-530434909 is a prime.

It is a super-2 number, since 2×530434909² = 562722385371676562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530434939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265217454 + 265217455.

It is an arithmetic number, because the mean of its divisors is an integer number (265217455).

Almost surely, 2^530434909 is an apocalyptic number.

It is an amenable number.

530434909 is a deficient number, since it is larger than the sum of its proper divisors (1).

530434909 is an equidigital number, since it uses as much as digits as its factorization.

530434909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 530434909 is about 23031.1725493949. The cubic root of 530434909 is about 809.4885299201.

The spelling of 530434909 in words is "five hundred thirty million, four hundred thirty-four thousand, nine hundred nine".