6304421 has 2 divisors, whose sum is σ = 6304422. Its totient is φ = 6304420.

The previous prime is 6304387. The next prime is 6304427. The reversal of 6304421 is 1244036.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4452100 + 1852321 = 2110^2 + 1361^2 .

It is a cyclic number.

It is not a de Polignac number, because 6304421 - 2⁶ = 6304357 is a prime.

It is a super-3 number, since 3×6304421³ (a number of 21 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6304393 and 6304402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6304427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3152210 + 3152211.

It is an arithmetic number, because the mean of its divisors is an integer number (3152211).

Almost surely, 2^6304421 is an apocalyptic number.

It is an amenable number.

6304421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6304421 is an equidigital number, since it uses as much as digits as its factorization.

6304421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 6304421 is about 2510.8606094326. The cubic root of 6304421 is about 184.7346671130.

Adding to 6304421 its reverse (1244036), we get a palindrome (7548457).

The spelling of 6304421 in words is "six million, three hundred four thousand, four hundred twenty-one".