855396 has 18 divisors (see below), whose sum is σ = 2162342. Its totient is φ = 285120.

The previous prime is 855391. The next prime is 855397. The reversal of 855396 is 693558.

It can be written as a sum of positive squares in only one way, i.e., 746496 + 108900 = 864^2 + 330^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 23761 = 855396 / (8 + 5 + 5 + 3 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 855396.

It is not an unprimeable number, because it can be changed into a prime (855391) 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, 11845 + ... + 11916.

2⁸⁵⁵³⁹⁶ is an apocalyptic number.

It is an amenable number.

855396 is an abundant number, since it is smaller than the sum of its proper divisors (1306946).

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

855396 is a wasteful number, since it uses less digits than its factorization.

855396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23771 (or 23766 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 855396 is about 924.8762079327. The cubic root of 855396 is about 94.9268504302.

It can be divided in two parts, 8553 and 96, that added together give a square (8649 = 93²).

The spelling of 855396 in words is "eight hundred fifty-five thousand, three hundred ninety-six".