6424321 has 4 divisors (see below), whose sum is σ = 6436144. Its totient is φ = 6412500.

The previous prime is 6424309. The next prime is 6424343. The reversal of 6424321 is 1234246.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6424321 - 2⁷ = 6424193 is a prime.

It is a super-2 number, since 2×6424321² = 82543800622082, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 6424321 parts by 3584 straight cuts.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6424292 and 6424301.

It is not an unprimeable number, because it can be changed into a prime (6424361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055 + ... + 6196.

It is an arithmetic number, because the mean of its divisors is an integer number (1609036).

Almost surely, 2^6424321 is an apocalyptic number.

It is an amenable number.

6424321 is a deficient number, since it is larger than the sum of its proper divisors (11823).

6424321 is a wasteful number, since it uses less digits than its factorization.

6424321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11822.

The product of its digits is 1152, while the sum is 22.

The square root of 6424321 is about 2534.6244297726. The cubic root of 6424321 is about 185.8984395647.

Adding to 6424321 its reverse (1234246), we get a palindrome (7658567).

The spelling of 6424321 in words is "six million, four hundred twenty-four thousand, three hundred twenty-one".