1084855 has 8 divisors (see below), whose sum is σ = 1378512. Its totient is φ = 816768.

The previous prime is 1084829. The next prime is 1084859. The reversal of 1084855 is 5584801.

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

It is a cyclic number.

It is not a de Polignac number, because 1084855 - 2⁵ = 1084823 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1084859) 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 7 ways as a sum of consecutive naturals, for example, 6297 + ... + 6466.

It is an arithmetic number, because the mean of its divisors is an integer number (172314).

2^1084855 is an apocalyptic number.

1084855 is a deficient number, since it is larger than the sum of its proper divisors (293657).

1084855 is a wasteful number, since it uses less digits than its factorization.

1084855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12785.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 1084855 is about 1041.5637282471. The cubic root of 1084855 is about 102.7520665063.

The spelling of 1084855 in words is "one million, eighty-four thousand, eight hundred fifty-five".