835420 has 12 divisors (see below), whose sum is σ = 1754424. Its totient is φ = 334160.

The previous prime is 835399. The next prime is 835421. The reversal of 835420 is 24538.

It is a junction number, because it is equal to n+sod(n) for n = 835391 and 835400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (835421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20866 + ... + 20905.

It is an arithmetic number, because the mean of its divisors is an integer number (146202).

2⁸³⁵⁴²⁰ is an apocalyptic number.

It is an amenable number.

835420 is an abundant number, since it is smaller than the sum of its proper divisors (919004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

835420 is a wasteful number, since it uses less digits than its factorization.

835420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41780 (or 41778 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 835420 is about 914.0131290085. The cubic root of 835420 is about 94.1820825607.

Adding to 835420 its reverse (24538), we get a palindrome (859958).

The spelling of 835420 in words is "eight hundred thirty-five thousand, four hundred twenty".