985464589 has 2 divisors, whose sum is σ = 985464590. Its totient is φ = 985464588.

The previous prime is 985464587. The next prime is 985464607.

985464589 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551075625 + 434388964 = 23475^2 + 20842^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 985464589 - 2¹ = 985464587 is a prime.

It is a super-2 number, since 2×985464589² = 1942280912345877842, which contains 22 as substring.

Together with 985464587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985464587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492732294 + 492732295.

It is an arithmetic number, because the mean of its divisors is an integer number (492732295).

Almost surely, 2^985464589 is an apocalyptic number.

It is an amenable number.

985464589 is a deficient number, since it is larger than the sum of its proper divisors (1).

985464589 is an equidigital number, since it uses as much as digits as its factorization.

985464589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12441600, while the sum is 58.

The square root of 985464589 is about 31392.1102986085. The cubic root of 985464589 is about 995.1311962218.

The spelling of 985464589 in words is "nine hundred eighty-five million, four hundred sixty-four thousand, five hundred eighty-nine".