603504 has 80 divisors (see below), whose sum is σ = 1904640. Its totient is φ = 181440.

The previous prime is 603503. The next prime is 603521. The reversal of 603504 is 405306.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 603504.

It is not an unprimeable number, because it can be changed into a prime (603503) 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, 4689 + ... + 4815.

It is an arithmetic number, because the mean of its divisors is an integer number (23808).

2⁶⁰³⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 603504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (952320).

603504 is an abundant number, since it is smaller than the sum of its proper divisors (1301136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

603504 is a wasteful number, since it uses less digits than its factorization.

603504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 143 counting only the distinct ones).

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

The square root of 603504 is about 776.8551988627. The cubic root of 603504 is about 84.5071361689.

The spelling of 603504 in words is "six hundred three thousand, five hundred four".