985810073 has 2 divisors, whose sum is σ = 985810074. Its totient is φ = 985810072.

The previous prime is 985809989. The next prime is 985810103. The reversal of 985810073 is 370018589.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 755590144 + 230219929 = 27488^2 + 15173^2 .

It is a cyclic number.

It is not a de Polignac number, because 985810073 - 2⁸ = 985809817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 985810073.

It is not a weakly prime, because it can be changed into another prime (985810873) 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, 492905036 + 492905037.

It is an arithmetic number, because the mean of its divisors is an integer number (492905037).

Almost surely, 2^985810073 is an apocalyptic number.

It is an amenable number.

985810073 is a deficient number, since it is larger than the sum of its proper divisors (1).

985810073 is an equidigital number, since it uses as much as digits as its factorization.

985810073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 985810073 is about 31397.6125366245. The cubic root of 985810073 is about 995.2474736072.

The spelling of 985810073 in words is "nine hundred eighty-five million, eight hundred ten thousand, seventy-three".