530987983 has 2 divisors, whose sum is σ = 530987984. Its totient is φ = 530987982.

The previous prime is 530987953. The next prime is 530987987. The reversal of 530987983 is 389789035.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 530987983 - 2¹³ = 530979791 is a prime.

It is a super-3 number, since 3×530987983³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 530987983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530987987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265493991 + 265493992.

It is an arithmetic number, because the mean of its divisors is an integer number (265493992).

Almost surely, 2^530987983 is an apocalyptic number.

530987983 is a deficient number, since it is larger than the sum of its proper divisors (1).

530987983 is an equidigital number, since it uses as much as digits as its factorization.

530987983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 530987983 is about 23043.1764954400. The cubic root of 530987983 is about 809.7697780913.

The spelling of 530987983 in words is "five hundred thirty million, nine hundred eighty-seven thousand, nine hundred eighty-three".