855318 has 8 divisors (see below), whose sum is σ = 1710648. Its totient is φ = 285104.

The previous prime is 855317. The next prime is 855331. The reversal of 855318 is 813558.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

855318 is an admirable number.

It is a super-2 number, since 2×855318² = 1463137762248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855311) 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, 71271 + ... + 71282.

It is an arithmetic number, because the mean of its divisors is an integer number (213831).

2⁸⁵⁵³¹⁸ is an apocalyptic number.

855318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

855318 is a wasteful number, since it uses less digits than its factorization.

855318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142558.

The product of its digits is 4800, while the sum is 30.

The square root of 855318 is about 924.8340391659. The cubic root of 855318 is about 94.9239650144.

The spelling of 855318 in words is "eight hundred fifty-five thousand, three hundred eighteen".