985570297 has 2 divisors, whose sum is σ = 985570298. Its totient is φ = 985570296.

The previous prime is 985570283. The next prime is 985570301. The reversal of 985570297 is 792075589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 803212281 + 182358016 = 28341^2 + 13504^2 .

It is an emirp because it is prime and its reverse (792075589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985570297 - 2¹¹ = 985568249 is a prime.

It is not a weakly prime, because it can be changed into another prime (985570237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492785148 + 492785149.

It is an arithmetic number, because the mean of its divisors is an integer number (492785149).

Almost surely, 2^985570297 is an apocalyptic number.

It is an amenable number.

985570297 is a deficient number, since it is larger than the sum of its proper divisors (1).

985570297 is an equidigital number, since it uses as much as digits as its factorization.

985570297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 52.

The square root of 985570297 is about 31393.7939249145. The cubic root of 985570297 is about 995.1667765862.

The spelling of 985570297 in words is "nine hundred eighty-five million, five hundred seventy thousand, two hundred ninety-seven".