855366 has 16 divisors (see below), whose sum is σ = 1757424. Its totient is φ = 277344.

The previous prime is 855359. The next prime is 855373. The reversal of 855366 is 663558.

It is an interprime number because it is at equal distance from previous prime (855359) and next prime (855373).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1705 + ... + 2148.

It is an arithmetic number, because the mean of its divisors is an integer number (109839).

2⁸⁵⁵³⁶⁶ is an apocalyptic number.

855366 is an abundant number, since it is smaller than the sum of its proper divisors (902058).

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

855366 is a wasteful number, since it uses less digits than its factorization.

855366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3895.

The product of its digits is 21600, while the sum is 33.

The square root of 855366 is about 924.8599894038. The cubic root of 855366 is about 94.9257406756.

It can be divided in two parts, 855 and 366, that added together give a palindrome (1221).

The spelling of 855366 in words is "eight hundred fifty-five thousand, three hundred sixty-six".