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835 = 5167

835 has 4 divisors (see below), whose sum is σ = 1008. Its totient is φ = 664.

The previous prime is 829. The next prime is 839. The reversal of 835 is 538.

835 is nontrivially palindromic in base 16.

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

835 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 538 = 2269.

It is the 9-th Motzkin number.

It is a cyclic number.

It is not a de Polignac number, because 835 - 23 = 827 is a prime.

It is a Duffinian number.

835 is an undulating number in base 16.

It is a plaindrome in base 9, base 11 and base 15.

It is not an unprimeable number, because it can be changed into a prime (839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79 + ... + 88.

It is an arithmetic number, because the mean of its divisors is an integer number (252).

835 is a deficient number, since it is larger than the sum of its proper divisors (173).

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

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

The sum of its prime factors is 172.

The product of its digits is 120, while the sum is 16.

The square root of 835 is about 28.8963665536. The cubic root of 835 is about 9.4166296846.

It can be divided in two parts, 83 and 5, that added together give a palindrome (88).

The spelling of 835 in words is "eight hundred thirty-five", and thus it is an aban number and an oban number.

Divisors: 1 5 167 835