1085823 has 6 divisors (see below), whose sum is σ = 1568424. Its totient is φ = 723876.

The previous prime is 1085813. The next prime is 1085827. The reversal of 1085823 is 3285801.

It is a happy number.

It is not a de Polignac number, because 1085823 - 2¹⁰ = 1084799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60315 + ... + 60332.

It is an arithmetic number, because the mean of its divisors is an integer number (261404).

2^1085823 is an apocalyptic number.

1085823 is a deficient number, since it is larger than the sum of its proper divisors (482601).

1085823 is a wasteful number, since it uses less digits than its factorization.

1085823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120653 (or 120650 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1085823 is about 1042.0283105559. The cubic root of 1085823 is about 102.7826188018.

The spelling of 1085823 in words is "one million, eighty-five thousand, eight hundred twenty-three".