1083855 has 16 divisors (see below), whose sum is σ = 1825920. Its totient is φ = 547488.

The previous prime is 1083851. The next prime is 1083871. The reversal of 1083855 is 5583801.

It is a happy number.

It is not a de Polignac number, because 1083855 - 2² = 1083851 is a prime.

It is a super-2 number, since 2×1083855² = 2349483322050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617 + ... + 2186.

It is an arithmetic number, because the mean of its divisors is an integer number (114120).

2^1083855 is an apocalyptic number.

1083855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1083855 is a deficient number, since it is larger than the sum of its proper divisors (742065).

1083855 is a wasteful number, since it uses less digits than its factorization.

1083855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 1083855 is about 1041.0835701326. The cubic root of 1083855 is about 102.7204851262.

The spelling of 1083855 in words is "one million, eighty-three thousand, eight hundred fifty-five".