1085887 has 4 divisors (see below), whose sum is σ = 1184616. Its totient is φ = 987160.

The previous prime is 1085881. The next prime is 1085891. The reversal of 1085887 is 7885801.

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

It is a cyclic number.

It is not a de Polignac number, because 1085887 - 2¹¹ = 1083839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085881) 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 3 ways as a sum of consecutive naturals, for example, 49348 + ... + 49369.

It is an arithmetic number, because the mean of its divisors is an integer number (296154).

2^1085887 is an apocalyptic number.

1085887 is a deficient number, since it is larger than the sum of its proper divisors (98729).

1085887 is an equidigital number, since it uses as much as digits as its factorization.

1085887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98728.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 1085887 is about 1042.0590194418. The cubic root of 1085887 is about 102.7846381482.

It can be divided in two parts, 108 and 5887, that added together give a palindrome (5995).

The spelling of 1085887 in words is "one million, eighty-five thousand, eight hundred eighty-seven".