603421 has 16 divisors (see below), whose sum is σ = 784000. Its totient is φ = 451008.

The previous prime is 603401. The next prime is 603431. The reversal of 603421 is 124306.

603421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 603421 - 2⁵ = 603389 is a prime.

603421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 603395 and 603404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (603401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555 + ... + 1903.

It is an arithmetic number, because the mean of its divisors is an integer number (49000).

2⁶⁰³⁴²¹ is an apocalyptic number.

It is an amenable number.

603421 is a deficient number, since it is larger than the sum of its proper divisors (180579).

603421 is a wasteful number, since it uses less digits than its factorization.

603421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 603421 is about 776.8017765170. The cubic root of 603421 is about 84.5032618981.

Adding to 603421 its reverse (124306), we get a palindrome (727727).

It can be divided in two parts, 603 and 421, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 603421 in words is "six hundred three thousand, four hundred twenty-one".