855895 has 4 divisors (see below), whose sum is σ = 1027080. Its totient is φ = 684712.

The previous prime is 855889. The next prime is 855901. The reversal of 855895 is 598558.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (855889) and next prime (855901).

It is a cyclic number.

It is not a de Polignac number, because 855895 - 2³ = 855887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85585 + ... + 85594.

It is an arithmetic number, because the mean of its divisors is an integer number (256770).

2⁸⁵⁵⁸⁹⁵ is an apocalyptic number.

855895 is a deficient number, since it is larger than the sum of its proper divisors (171185).

855895 is a wasteful number, since it uses less digits than its factorization.

855895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171184.

The product of its digits is 72000, while the sum is 40.

The square root of 855895 is about 925.1459344341. The cubic root of 855895 is about 94.9453055435.

The spelling of 855895 in words is "eight hundred fifty-five thousand, eight hundred ninety-five".