529969987 has 2 divisors, whose sum is σ = 529969988. Its totient is φ = 529969986.

The previous prime is 529969943. The next prime is 529970033. The reversal of 529969987 is 789969925.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 529969987 - 2⁷ = 529969859 is a prime.

It is not a weakly prime, because it can be changed into another prime (529969387) 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, 264984993 + 264984994.

It is an arithmetic number, because the mean of its divisors is an integer number (264984994).

Almost surely, 2^529969987 is an apocalyptic number.

529969987 is a deficient number, since it is larger than the sum of its proper divisors (1).

529969987 is an equidigital number, since it uses as much as digits as its factorization.

529969987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22044960, while the sum is 64.

The square root of 529969987 is about 23021.0770165082. The cubic root of 529969987 is about 809.2519573586.

The spelling of 529969987 in words is "five hundred twenty-nine million, nine hundred sixty-nine thousand, nine hundred eighty-seven".