528629869 has 2 divisors, whose sum is σ = 528629870. Its totient is φ = 528629868.

The previous prime is 528629819. The next prime is 528629873. The reversal of 528629869 is 968926825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 518472900 + 10156969 = 22770^2 + 3187^2 .

It is a cyclic number.

It is not a de Polignac number, because 528629869 - 2¹⁹ = 528105581 is a prime.

It is a super-2 number, since 2×528629869² = 558899076797914322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528629809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264314934 + 264314935.

It is an arithmetic number, because the mean of its divisors is an integer number (264314935).

Almost surely, 2^528629869 is an apocalyptic number.

It is an amenable number.

528629869 is a deficient number, since it is larger than the sum of its proper divisors (1).

528629869 is an equidigital number, since it uses as much as digits as its factorization.

528629869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 55.

The square root of 528629869 is about 22991.9522659560. The cubic root of 528629869 is about 808.5692718385.

The spelling of 528629869 in words is "five hundred twenty-eight million, six hundred twenty-nine thousand, eight hundred sixty-nine".