855284 has 6 divisors (see below), whose sum is σ = 1496754. Its totient is φ = 427640.

The previous prime is 855277. The next prime is 855293. The reversal of 855284 is 482558.

855284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 605284 + 250000 = 778^2 + 500^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 855284.

It is a congruent number.

It is an unprimeable number.

855284 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 as a sum of consecutive naturals, namely, 106907 + ... + 106914.

It is an arithmetic number, because the mean of its divisors is an integer number (249459).

2⁸⁵⁵²⁸⁴ is an apocalyptic number.

It is an amenable number.

855284 is a deficient number, since it is larger than the sum of its proper divisors (641470).

855284 is a wasteful number, since it uses less digits than its factorization.

855284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213825 (or 213823 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

The square root of 855284 is about 924.8156573069. The cubic root of 855284 is about 94.9227072141.

The spelling of 855284 in words is "eight hundred fifty-five thousand, two hundred eighty-four".