6820135 has 8 divisors (see below), whose sum is σ = 9353376. Its totient is φ = 4676640.

The previous prime is 6820129. The next prime is 6820139. The reversal of 6820135 is 5310286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6820135 - 2³ = 6820127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820139) 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, 97396 + ... + 97465.

It is an arithmetic number, because the mean of its divisors is an integer number (1169172).

Almost surely, 2^6820135 is an apocalyptic number.

6820135 is a deficient number, since it is larger than the sum of its proper divisors (2533241).

6820135 is a wasteful number, since it uses less digits than its factorization.

6820135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194873.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 6820135 is about 2611.5388183981. The cubic root of 6820135 is about 189.6404557841.

The spelling of 6820135 in words is "six million, eight hundred twenty thousand, one hundred thirty-five".