985662071 has 2 divisors, whose sum is σ = 985662072. Its totient is φ = 985662070.

The previous prime is 985662053. The next prime is 985662109. The reversal of 985662071 is 170266589.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985662071 - 2¹⁸ = 985399927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985662011) 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, 492831035 + 492831036.

It is an arithmetic number, because the mean of its divisors is an integer number (492831036).

Almost surely, 2^985662071 is an apocalyptic number.

985662071 is a deficient number, since it is larger than the sum of its proper divisors (1).

985662071 is an equidigital number, since it uses as much as digits as its factorization.

985662071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 985662071 is about 31395.2555492068. The cubic root of 985662071 is about 995.1976648281.

The spelling of 985662071 in words is "nine hundred eighty-five million, six hundred sixty-two thousand, seventy-one".