855955 has 8 divisors (see below), whose sum is σ = 1033632. Its totient is φ = 680448.

The previous prime is 855947. The next prime is 855983. The reversal of 855955 is 559558.

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

It is a cyclic number.

It is not a de Polignac number, because 855955 - 2³ = 855947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (129204).

2⁸⁵⁵⁹⁵⁵ is an apocalyptic number.

855955 is a deficient number, since it is larger than the sum of its proper divisors (177677).

855955 is a wasteful number, since it uses less digits than its factorization.

855955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

The product of its digits is 45000, while the sum is 37.

The square root of 855955 is about 925.1783611823. The cubic root of 855955 is about 94.9475241121.

The spelling of 855955 in words is "eight hundred fifty-five thousand, nine hundred fifty-five".