855104 has 28 divisors (see below), whose sum is σ = 1755648. Its totient is φ = 412800.

The previous prime is 855089. The next prime is 855119. The reversal of 855104 is 401558.

It is an interprime number because it is at equal distance from previous prime (855089) and next prime (855119).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 855104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1769 + ... + 2199.

2⁸⁵⁵¹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877824).

855104 is an abundant number, since it is smaller than the sum of its proper divisors (900544).

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

855104 is a wasteful number, since it uses less digits than its factorization.

855104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 855104 is about 924.7183354947. The cubic root of 855104 is about 94.9160477162.

It can be divided in two parts, 855 and 104, that added together give a palindrome (959).

The spelling of 855104 in words is "eight hundred fifty-five thousand, one hundred four".