850529 has 2 divisors, whose sum is σ = 850530. Its totient is φ = 850528.

The previous prime is 850481. The next prime is 850537. The reversal of 850529 is 925058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462400 + 388129 = 680^2 + 623^2 .

It is a cyclic number.

It is not a de Polignac number, because 850529 - 2⁸ = 850273 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 850529.

It is not a weakly prime, because it can be changed into another prime (850229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425264 + 425265.

It is an arithmetic number, because the mean of its divisors is an integer number (425265).

2⁸⁵⁰⁵²⁹ is an apocalyptic number.

It is an amenable number.

850529 is a deficient number, since it is larger than the sum of its proper divisors (1).

850529 is an equidigital number, since it uses as much as digits as its factorization.

850529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 850529 is about 922.2412916368. The cubic root of 850529 is about 94.7464708158.

Subtracting 850529 from its reverse (925058), we obtain a square (74529 = 273²).

The spelling of 850529 in words is "eight hundred fifty thousand, five hundred twenty-nine".