605403 has 12 divisors (see below), whose sum is σ = 882648. Its totient is φ = 399840.

The previous prime is 605401. The next prime is 605411. The reversal of 605403 is 304506.

It is a happy number.

It is not a de Polignac number, because 605403 - 2¹ = 605401 is a prime.

It is an Ulam number.

605403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (605401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 988 + ... + 1478.

It is an arithmetic number, because the mean of its divisors is an integer number (73554).

2⁶⁰⁵⁴⁰³ is an apocalyptic number.

605403 is a deficient number, since it is larger than the sum of its proper divisors (277245).

605403 is a wasteful number, since it uses less digits than its factorization.

605403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 605403 is about 778.0764743905. The cubic root of 605403 is about 84.5956807479.

Adding to 605403 its reverse (304506), we get a palindrome (909909).

The spelling of 605403 in words is "six hundred five thousand, four hundred three".