6204421 has 2 divisors, whose sum is σ = 6204422. Its totient is φ = 6204420.

The previous prime is 6204413. The next prime is 6204437. The reversal of 6204421 is 1244026.

6204421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4730625 + 1473796 = 2175^2 + 1214^2 .

It is a cyclic number.

It is not a de Polignac number, because 6204421 - 2³ = 6204413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6204461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3102210 + 3102211.

It is an arithmetic number, because the mean of its divisors is an integer number (3102211).

Almost surely, 2^6204421 is an apocalyptic number.

It is an amenable number.

6204421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6204421 is an equidigital number, since it uses as much as digits as its factorization.

6204421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 6204421 is about 2490.8675195602. The cubic root of 6204421 is about 183.7527100962.

Adding to 6204421 its reverse (1244026), we get a palindrome (7448447).

It can be divided in two parts, 620 and 4421, that added together give a square (5041 = 71²).

The spelling of 6204421 in words is "six million, two hundred four thousand, four hundred twenty-one".