493604 has 6 divisors (see below), whose sum is σ = 863814. Its totient is φ = 246800.

The previous prime is 493583. The next prime is 493607. The reversal of 493604 is 406394.

It can be written as a sum of positive squares in only one way, i.e., 487204 + 6400 = 698^2 + 80^2 .

It is not an unprimeable number, because it can be changed into a prime (493607) by changing a digit.

493604 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61697 + ... + 61704.

It is an arithmetic number, because the mean of its divisors is an integer number (143969).

2⁴⁹³⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

493604 is a deficient number, since it is larger than the sum of its proper divisors (370210).

493604 is a wasteful number, since it uses less digits than its factorization.

493604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123405 (or 123403 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 493604 is about 702.5695695090. The cubic root of 493604 is about 79.0301652682.

Adding to 493604 its reverse (406394), we get a palindrome (899998).

The spelling of 493604 in words is "four hundred ninety-three thousand, six hundred four".