1085589 has 16 divisors (see below), whose sum is σ = 1661440. Its totient is φ = 699840.

The previous prime is 1085587. The next prime is 1085611. The reversal of 1085589 is 9855801.

It is not a de Polignac number, because 1085589 - 2¹ = 1085587 is a prime.

It is a Duffinian number.

1085589 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189 + ... + 1485.

It is an arithmetic number, because the mean of its divisors is an integer number (103840).

2^1085589 is an apocalyptic number.

It is an amenable number.

1085589 is a deficient number, since it is larger than the sum of its proper divisors (575851).

1085589 is a wasteful number, since it uses less digits than its factorization.

1085589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 1085589 is about 1041.9160234875. The cubic root of 1085589 is about 102.7752348910.

The spelling of 1085589 in words is "one million, eighty-five thousand, five hundred eighty-nine".