604993 has 4 divisors (see below), whose sum is σ = 607428. Its totient is φ = 602560.

The previous prime is 604973. The next prime is 604997. The reversal of 604993 is 399406.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204304 + 400689 = 452^2 + 633^2 .

It is a cyclic number.

It is not a de Polignac number, because 604993 - 2⁹ = 604481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (604997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796 + ... + 1357.

It is an arithmetic number, because the mean of its divisors is an integer number (151857).

2⁶⁰⁴⁹⁹³ is an apocalyptic number.

It is an amenable number.

604993 is a deficient number, since it is larger than the sum of its proper divisors (2435).

604993 is a wasteful number, since it uses less digits than its factorization.

604993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 604993 is about 777.8129595218. The cubic root of 604993 is about 84.5765793880.

The spelling of 604993 in words is "six hundred four thousand, nine hundred ninety-three".