604561 has 8 divisors (see below), whose sum is σ = 650880. Its totient is φ = 559728.

The previous prime is 604559. The next prime is 604579. The reversal of 604561 is 165406.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 604561 - 2¹ = 604559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (604361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555 + ... + 1231.

It is an arithmetic number, because the mean of its divisors is an integer number (81360).

2⁶⁰⁴⁵⁶¹ is an apocalyptic number.

It is an amenable number.

604561 is a deficient number, since it is larger than the sum of its proper divisors (46319).

604561 is a wasteful number, since it uses less digits than its factorization.

604561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 604561 is about 777.5352082060. The cubic root of 604561 is about 84.5564437378.

Adding to 604561 its reverse (165406), we get a palindrome (769967).

The spelling of 604561 in words is "six hundred four thousand, five hundred sixty-one".