1085856 has 24 divisors (see below), whose sum is σ = 2850624. Its totient is φ = 361920.

The previous prime is 1085827. The next prime is 1085857. The reversal of 1085856 is 6585801.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (1085857) 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, 5560 + ... + 5751.

It is an arithmetic number, because the mean of its divisors is an integer number (118776).

2^1085856 is an apocalyptic number.

1085856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1085856 is an abundant number, since it is smaller than the sum of its proper divisors (1764768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1085856 is a wasteful number, since it uses less digits than its factorization.

1085856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11324 (or 11316 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1085856 is about 1042.0441449382. The cubic root of 1085856 is about 102.7836600372.

Subtracting 1085856 from its reverse (6585801), we obtain a palindrome (5499945).

The spelling of 1085856 in words is "one million, eighty-five thousand, eight hundred fifty-six".