6423321 has 8 divisors (see below), whose sum is σ = 8616384. Its totient is φ = 4256240.

The previous prime is 6423301. The next prime is 6423337. The reversal of 6423321 is 1233246.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6423321 - 2⁵ = 6423289 is a prime.

It is a d-powerful number, because it can be written as 6² + 4¹¹ + 2¹⁷ + 3³ + 3⁶ + 2²¹ + 1 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6423301) 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, 5910 + ... + 6911.

It is an arithmetic number, because the mean of its divisors is an integer number (1077048).

Almost surely, 2^6423321 is an apocalyptic number.

It is an amenable number.

6423321 is a deficient number, since it is larger than the sum of its proper divisors (2193063).

6423321 is a wasteful number, since it uses less digits than its factorization.

6423321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12991.

The product of its digits is 864, while the sum is 21.

The square root of 6423321 is about 2534.4271542106. The cubic root of 6423321 is about 185.8887935084. Note that the first 3 decimals are identical.

Adding to 6423321 its reverse (1233246), we get a palindrome (7656567).

The spelling of 6423321 in words is "six million, four hundred twenty-three thousand, three hundred twenty-one".