6855423 has 4 divisors (see below), whose sum is σ = 9140568. Its totient is φ = 4570280.

The previous prime is 6855419. The next prime is 6855451. The reversal of 6855423 is 3245586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6855423 - 2² = 6855419 is a prime.

It is a D-number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142568 + ... + 1142573.

It is an arithmetic number, because the mean of its divisors is an integer number (2285142).

Almost surely, 2^6855423 is an apocalyptic number.

6855423 is a deficient number, since it is larger than the sum of its proper divisors (2285145).

6855423 is a wasteful number, since it uses less digits than its factorization.

6855423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285144.

The product of its digits is 28800, while the sum is 33.

The square root of 6855423 is about 2618.2862715906. The cubic root of 6855423 is about 189.9669656326.

The spelling of 6855423 in words is "six million, eight hundred fifty-five thousand, four hundred twenty-three".