985729529 has 2 divisors, whose sum is σ = 985729530. Its totient is φ = 985729528.

The previous prime is 985729499. The next prime is 985729541. The reversal of 985729529 is 925927589.

985729529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 753228025 + 232501504 = 27445^2 + 15248^2 .

It is a cyclic number.

It is not a de Polignac number, because 985729529 - 2⁸ = 985729273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (985729429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492864764 + 492864765.

It is an arithmetic number, because the mean of its divisors is an integer number (492864765).

Almost surely, 2^985729529 is an apocalyptic number.

It is an amenable number.

985729529 is a deficient number, since it is larger than the sum of its proper divisors (1).

985729529 is an equidigital number, since it uses as much as digits as its factorization.

985729529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 56.

The square root of 985729529 is about 31396.3298651291. The cubic root of 985729529 is about 995.2203678465.

The spelling of 985729529 in words is "nine hundred eighty-five million, seven hundred twenty-nine thousand, five hundred twenty-nine".