530393989 has 2 divisors, whose sum is σ = 530393990. Its totient is φ = 530393988.

The previous prime is 530393957. The next prime is 530394031. The reversal of 530393989 is 989393035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429732900 + 100661089 = 20730^2 + 10033^2 .

It is a cyclic number.

It is not a de Polignac number, because 530393989 - 2⁵ = 530393957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530303989) 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, 265196994 + 265196995.

It is an arithmetic number, because the mean of its divisors is an integer number (265196995).

Almost surely, 2^530393989 is an apocalyptic number.

It is an amenable number.

530393989 is a deficient number, since it is larger than the sum of its proper divisors (1).

530393989 is an equidigital number, since it uses as much as digits as its factorization.

530393989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 787320, while the sum is 49.

The square root of 530393989 is about 23030.2841710648. The cubic root of 530393989 is about 809.4677135913.

The spelling of 530393989 in words is "five hundred thirty million, three hundred ninety-three thousand, nine hundred eighty-nine".