855459 has 12 divisors (see below), whose sum is σ = 1348152. Its totient is φ = 518400.

The previous prime is 855431. The next prime is 855461. The reversal of 855459 is 954558.

It is a happy number.

855459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 855459 - 2⁵ = 855427 is a prime.

855459 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (855419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4222 + ... + 4419.

It is an arithmetic number, because the mean of its divisors is an integer number (112346).

2⁸⁵⁵⁴⁵⁹ is an apocalyptic number.

855459 is a deficient number, since it is larger than the sum of its proper divisors (492693).

855459 is a wasteful number, since it uses less digits than its factorization.

855459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8658 (or 8655 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 855459 is about 924.9102659177. The cubic root of 855459 is about 94.9291808303.

Subtracting 855459 from its reverse (954558), we obtain a palindrome (99099).

The spelling of 855459 in words is "eight hundred fifty-five thousand, four hundred fifty-nine".