985349473 has 2 divisors, whose sum is σ = 985349474. Its totient is φ = 985349472.

The previous prime is 985349459. The next prime is 985349483. The reversal of 985349473 is 374943589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 718615249 + 266734224 = 26807^2 + 16332^2 .

It is an emirp because it is prime and its reverse (374943589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985349473 - 2¹³ = 985341281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 985349473.

It is not a weakly prime, because it can be changed into another prime (985349483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492674736 + 492674737.

It is an arithmetic number, because the mean of its divisors is an integer number (492674737).

Almost surely, 2^985349473 is an apocalyptic number.

It is an amenable number.

985349473 is a deficient number, since it is larger than the sum of its proper divisors (1).

985349473 is an equidigital number, since it uses as much as digits as its factorization.

985349473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 52.

The square root of 985349473 is about 31390.2767270376. The cubic root of 985349473 is about 995.0924463148.

The spelling of 985349473 in words is "nine hundred eighty-five million, three hundred forty-nine thousand, four hundred seventy-three".