855850 has 12 divisors (see below), whose sum is σ = 1591974. Its totient is φ = 342320.

The previous prime is 855821. The next prime is 855851. The reversal of 855850 is 58558.

It is a happy number.

855850 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 3 ways, for example, as 321489 + 534361 = 567^2 + 731^2 .

It is not an unprimeable number, because it can be changed into a prime (855851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8509 + ... + 8608.

2⁸⁵⁵⁸⁵⁰ is an apocalyptic number.

855850 is a deficient number, since it is larger than the sum of its proper divisors (736124).

855850 is a wasteful number, since it uses less digits than its factorization.

855850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17129 (or 17124 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 855850 is about 925.1216136271. The cubic root of 855850 is about 94.9436415491.

The spelling of 855850 in words is "eight hundred fifty-five thousand, eight hundred fifty".