6423423 has 4 divisors (see below), whose sum is σ = 8564568. Its totient is φ = 4282280.

The previous prime is 6423407. The next prime is 6423427. The reversal of 6423423 is 3243246.

It is a happy number.

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 6423423 - 2⁴ = 6423407 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 6423393 and 6423402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423427) 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, 1070568 + ... + 1070573.

It is an arithmetic number, because the mean of its divisors is an integer number (2141142).

Almost surely, 2^6423423 is an apocalyptic number.

6423423 is a deficient number, since it is larger than the sum of its proper divisors (2141145).

6423423 is a wasteful number, since it uses less digits than its factorization.

6423423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141144.

The product of its digits is 3456, while the sum is 24.

The square root of 6423423 is about 2534.4472770212. The cubic root of 6423423 is about 185.8897774520.

Adding to 6423423 its reverse (3243246), we get a palindrome (9666669).

The spelling of 6423423 in words is "six million, four hundred twenty-three thousand, four hundred twenty-three".