903604 has 12 divisors (see below), whose sum is σ = 1703044. Its totient is φ = 417024.

The previous prime is 903569. The next prime is 903607. The reversal of 903604 is 406309.

It can be written as a sum of positive squares in 2 ways, for example, as 90000 + 813604 = 300^2 + 902^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (903607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8637 + ... + 8740.

2⁹⁰³⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

903604 is a deficient number, since it is larger than the sum of its proper divisors (799440).

903604 is a wasteful number, since it uses less digits than its factorization.

903604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17394 (or 17392 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 903604 is about 950.5808750443. The cubic root of 903604 is about 96.6776417715.

The spelling of 903604 in words is "nine hundred three thousand, six hundred four".