9966529 has 2 divisors, whose sum is σ = 9966530. Its totient is φ = 9966528.

The previous prime is 9966511. The next prime is 9966533. The reversal of 9966529 is 9256699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9859600 + 106929 = 3140^2 + 327^2 .

It is a cyclic number.

It is not a de Polignac number, because 9966529 - 2¹¹ = 9964481 is a prime.

It is not a weakly prime, because it can be changed into another prime (9966559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4983264 + 4983265.

It is an arithmetic number, because the mean of its divisors is an integer number (4983265).

Almost surely, 2^9966529 is an apocalyptic number.

It is an amenable number.

9966529 is a deficient number, since it is larger than the sum of its proper divisors (1).

9966529 is an equidigital number, since it uses as much as digits as its factorization.

9966529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 46.

The square root of 9966529 is about 3156.9809945579. The cubic root of 9966529 is about 215.2028300439.

The spelling of 9966529 in words is "nine million, nine hundred sixty-six thousand, five hundred twenty-nine".