985212589 has 2 divisors, whose sum is σ = 985212590. Its totient is φ = 985212588.

The previous prime is 985212559. The next prime is 985212619.

985212589 is nontrivially palindromic in base 10.

It is a balanced prime because it is at equal distance from previous prime (985212559) and next prime (985212619).

It can be written as a sum of positive squares in only one way, i.e., 901800900 + 83411689 = 30030^2 + 9133^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985212589 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985212559) 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, 492606294 + 492606295.

It is an arithmetic number, because the mean of its divisors is an integer number (492606295).

Almost surely, 2^985212589 is an apocalyptic number.

It is an amenable number.

985212589 is a deficient number, since it is larger than the sum of its proper divisors (1).

985212589 is an equidigital number, since it uses as much as digits as its factorization.

985212589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 49.

The square root of 985212589 is about 31388.0962946146. The cubic root of 985212589 is about 995.0463650187.

The spelling of 985212589 in words is "nine hundred eighty-five million, two hundred twelve thousand, five hundred eighty-nine".