6819423 has 16 divisors (see below), whose sum is σ = 10308480. Its totient is φ = 3975264.

The previous prime is 6819403. The next prime is 6819443. The reversal of 6819423 is 3249186.

6819423 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6819403) and next prime (6819443).

It is not a de Polignac number, because 6819423 - 2¹² = 6815327 is a prime.

It is an Ulam number.

6819423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6819403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3861 + ... + 5342.

It is an arithmetic number, because the mean of its divisors is an integer number (644280).

Almost surely, 2^6819423 is an apocalyptic number.

6819423 is a deficient number, since it is larger than the sum of its proper divisors (3489057).

6819423 is a wasteful number, since it uses less digits than its factorization.

6819423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9238.

The product of its digits is 10368, while the sum is 33.

The square root of 6819423 is about 2611.4024967438. The cubic root of 6819423 is about 189.6338562713.

It can be divided in two parts, 68 and 19423, that added together give a palindrome (19491).

The spelling of 6819423 in words is "six million, eight hundred nineteen thousand, four hundred twenty-three".