855594 has 12 divisors (see below), whose sum is σ = 1853826. Its totient is φ = 285192.

The previous prime is 855581. The next prime is 855601. The reversal of 855594 is 495558.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 439569 + 416025 = 663^2 + 645^2 .

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 855594.

It is an unprimeable number.

855594 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23749 + ... + 23784.

2⁸⁵⁵⁵⁹⁴ is an apocalyptic number.

855594 is an abundant number, since it is smaller than the sum of its proper divisors (998232).

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

855594 is a wasteful number, since it uses less digits than its factorization.

855594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47541 (or 47538 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 855594 is about 924.9832430915. The cubic root of 855594 is about 94.9341741595.

Subtracting from 855594 its sum of digits (36), we obtain a palindrome (855558).

It can be divided in two parts, 8555 and 94, that added together give a square (8649 = 93²).

The spelling of 855594 in words is "eight hundred fifty-five thousand, five hundred ninety-four".