985444697 has 2 divisors, whose sum is σ = 985444698. Its totient is φ = 985444696.

The previous prime is 985444687. The next prime is 985444703. The reversal of 985444697 is 796444589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 941937481 + 43507216 = 30691^2 + 6596^2 .

It is an emirp because it is prime and its reverse (796444589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985444697 - 2¹² = 985440601 is a prime.

It is a super-2 number, since 2×985444697² = 1942202501690843618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (985444667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492722348 + 492722349.

It is an arithmetic number, because the mean of its divisors is an integer number (492722349).

Almost surely, 2^985444697 is an apocalyptic number.

It is an amenable number.

985444697 is a deficient number, since it is larger than the sum of its proper divisors (1).

985444697 is an equidigital number, since it uses as much as digits as its factorization.

985444697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 56.

The square root of 985444697 is about 31391.7934658089. The cubic root of 985444697 is about 995.1245004687.

The spelling of 985444697 in words is "nine hundred eighty-five million, four hundred forty-four thousand, six hundred ninety-seven".