85323529 has 2 divisors, whose sum is σ = 85323530. Its totient is φ = 85323528.

The previous prime is 85323523. The next prime is 85323533. The reversal of 85323529 is 92532358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67683529 + 17640000 = 8227^2 + 4200^2 .

It is a cyclic number.

It is not a de Polignac number, because 85323529 - 2⁷ = 85323401 is a prime.

It is not a weakly prime, because it can be changed into another prime (85323523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42661764 + 42661765.

It is an arithmetic number, because the mean of its divisors is an integer number (42661765).

Almost surely, 2^85323529 is an apocalyptic number.

It is an amenable number.

85323529 is a deficient number, since it is larger than the sum of its proper divisors (1).

85323529 is an equidigital number, since it uses as much as digits as its factorization.

85323529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The square root of 85323529 is about 9237.0736166819. The cubic root of 85323529 is about 440.2401048342.

The spelling of 85323529 in words is "eighty-five million, three hundred twenty-three thousand, five hundred twenty-nine".