855705 has 8 divisors (see below), whose sum is σ = 1369152. Its totient is φ = 456368.

The previous prime is 855697. The next prime is 855709. The reversal of 855705 is 507558.

It is a happy number.

855705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 855705 - 2³ = 855697 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 855705.

It is not an unprimeable number, because it can be changed into a prime (855709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28509 + ... + 28538.

It is an arithmetic number, because the mean of its divisors is an integer number (171144).

2⁸⁵⁵⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

855705 is a deficient number, since it is larger than the sum of its proper divisors (513447).

855705 is a wasteful number, since it uses less digits than its factorization.

855705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57055.

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 855705 is about 925.0432422325. The cubic root of 855705 is about 94.9382793923.

The spelling of 855705 in words is "eight hundred fifty-five thousand, seven hundred five".