6815385 has 48 divisors (see below), whose sum is σ = 12804480. Its totient is φ = 3340800.

The previous prime is 6815327. The next prime is 6815399. The reversal of 6815385 is 5835186.

6815385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6815385 - 2⁶ = 6815321 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45060 + ... + 45210.

It is an arithmetic number, because the mean of its divisors is an integer number (266760).

Almost surely, 2^6815385 is an apocalyptic number.

It is an amenable number.

6815385 is a deficient number, since it is larger than the sum of its proper divisors (5989095).

6815385 is a wasteful number, since it uses less digits than its factorization.

6815385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 235 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 6815385 is about 2610.6292344950. The cubic root of 6815385 is about 189.5964194431.

The spelling of 6815385 in words is "six million, eight hundred fifteen thousand, three hundred eighty-five".