855635 has 16 divisors (see below), whose sum is σ = 1147392. Its totient is φ = 607200.

The previous prime is 855619. The next prime is 855641. The reversal of 855635 is 536558.

855635 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 855635 - 2⁴ = 855619 is a prime.

It is a super-2 number, since 2×855635² = 1464222506450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2420 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (71712).

2⁸⁵⁵⁶³⁵ is an apocalyptic number.

855635 is a deficient number, since it is larger than the sum of its proper divisors (291757).

855635 is a wasteful number, since it uses less digits than its factorization.

855635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

The product of its digits is 18000, while the sum is 32.

The square root of 855635 is about 925.0054053896. The cubic root of 855635 is about 94.9356905481.

The spelling of 855635 in words is "eight hundred fifty-five thousand, six hundred thirty-five".