604421 has 4 divisors (see below), whose sum is σ = 606144. Its totient is φ = 602700.

The previous prime is 604411. The next prime is 604427. The reversal of 604421 is 124406.

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 604421 - 2¹⁴ = 588037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 604421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125 + ... + 1106.

It is an arithmetic number, because the mean of its divisors is an integer number (151536).

2⁶⁰⁴⁴²¹ is an apocalyptic number.

It is an amenable number.

604421 is a deficient number, since it is larger than the sum of its proper divisors (1723).

604421 is a wasteful number, since it uses less digits than its factorization.

604421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 604421 is about 777.4451749159. The cubic root of 604421 is about 84.5499162376.

Adding to 604421 its reverse (124406), we get a palindrome (728827).

The spelling of 604421 in words is "six hundred four thousand, four hundred twenty-one".