1085849 has 4 divisors (see below), whose sum is σ = 1088100. Its totient is φ = 1083600.

The previous prime is 1085827. The next prime is 1085857. The reversal of 1085849 is 9485801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 672400 + 413449 = 820^2 + 643^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085849 - 2²⁰ = 37273 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1085809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 1475.

It is an arithmetic number, because the mean of its divisors is an integer number (272025).

2^1085849 is an apocalyptic number.

It is an amenable number.

1085849 is a deficient number, since it is larger than the sum of its proper divisors (2251).

1085849 is an equidigital number, since it uses as much as digits as its factorization.

1085849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1085849 is about 1042.0407861499. The cubic root of 1085849 is about 102.7834391709.

The spelling of 1085849 in words is "one million, eighty-five thousand, eight hundred forty-nine".