604342421 has 2 divisors, whose sum is σ = 604342422. Its totient is φ = 604342420.

The previous prime is 604342391. The next prime is 604342429. The reversal of 604342421 is 124243406.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 596580625 + 7761796 = 24425^2 + 2786^2 .

It is a cyclic number.

It is not a de Polignac number, because 604342421 - 2⁶ = 604342357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (604342429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302171210 + 302171211.

It is an arithmetic number, because the mean of its divisors is an integer number (302171211).

Almost surely, 2^604342421 is an apocalyptic number.

It is an amenable number.

604342421 is a deficient number, since it is larger than the sum of its proper divisors (1).

604342421 is an equidigital number, since it uses as much as digits as its factorization.

604342421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 604342421 is about 24583.3769242551. The cubic root of 604342421 is about 845.4625205003.

Adding to 604342421 its reverse (124243406), we get a palindrome (728585827).

The spelling of 604342421 in words is "six hundred four million, three hundred forty-two thousand, four hundred twenty-one".