528999973 has 2 divisors, whose sum is σ = 528999974. Its totient is φ = 528999972.

The previous prime is 528999967. The next prime is 529000057. The reversal of 528999973 is 379999825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486775969 + 42224004 = 22063^2 + 6498^2 .

It is a cyclic number.

It is not a de Polignac number, because 528999973 - 2⁵ = 528999941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528999073) 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, 264499986 + 264499987.

It is an arithmetic number, because the mean of its divisors is an integer number (264499987).

Almost surely, 2^528999973 is an apocalyptic number.

It is an amenable number.

528999973 is a deficient number, since it is larger than the sum of its proper divisors (1).

528999973 is an equidigital number, since it uses as much as digits as its factorization.

528999973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11022480, while the sum is 61.

The square root of 528999973 is about 22999.9994130435. Note that the first 3 decimals coincide. The cubic root of 528999973 is about 808.7579261494.

The spelling of 528999973 in words is "five hundred twenty-eight million, nine hundred ninety-nine thousand, nine hundred seventy-three".