855441 has 20 divisors (see below), whose sum is σ = 1306800. Its totient is φ = 557496.

The previous prime is 855431. The next prime is 855461. The reversal of 855441 is 144558.

It is not a de Polignac number, because 855441 - 2⁶ = 855377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (855401) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4690 + ... + 4868.

It is an arithmetic number, because the mean of its divisors is an integer number (65340).

2⁸⁵⁵⁴⁴¹ is an apocalyptic number.

855441 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

855441 is a deficient number, since it is larger than the sum of its proper divisors (451359).

855441 is a wasteful number, since it uses less digits than its factorization.

855441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 241 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 855441 is about 924.9005351928. The cubic root of 855441 is about 94.9285150133.

Adding to 855441 its reverse (144558), we get a palindrome (999999).

It can be divided in two parts, 855 and 441, that added together give a 4-th power (1296 = 6⁴).

The spelling of 855441 in words is "eight hundred fifty-five thousand, four hundred forty-one".