985775489 has 8 divisors (see below), whose sum is σ = 1001068800. Its totient is φ = 970499376.

The previous prime is 985775477. The next prime is 985775491. The reversal of 985775489 is 984577589.

985775489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985775489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985775419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157667 + ... + 163799.

It is an arithmetic number, because the mean of its divisors is an integer number (125133600).

Almost surely, 2^985775489 is an apocalyptic number.

It is an amenable number.

985775489 is a deficient number, since it is larger than the sum of its proper divisors (15293311).

985775489 is a wasteful number, since it uses less digits than its factorization.

985775489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8599.

The product of its digits is 25401600, while the sum is 62.

The square root of 985775489 is about 31397.0617892821. The cubic root of 985775489 is about 995.2358351107.

The spelling of 985775489 in words is "nine hundred eighty-five million, seven hundred seventy-five thousand, four hundred eighty-nine".