604531 has 4 divisors (see below), whose sum is σ = 624064. Its totient is φ = 585000.

The previous prime is 604529. The next prime is 604547. The reversal of 604531 is 135406.

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

It is a cyclic number.

It is not a de Polignac number, because 604531 - 2¹ = 604529 is a prime.

It is a super-2 number, since 2×604531² = 730915459922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 604499 and 604508.

It is not an unprimeable number, because it can be changed into a prime (604031) 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, 9720 + ... + 9781.

It is an arithmetic number, because the mean of its divisors is an integer number (156016).

2⁶⁰⁴⁵³¹ is an apocalyptic number.

604531 is a deficient number, since it is larger than the sum of its proper divisors (19533).

604531 is a wasteful number, since it uses less digits than its factorization.

604531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19532.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 604531 is about 777.5159162358. The cubic root of 604531 is about 84.5550450726. Note that the first 3 decimals are identical.

Adding to 604531 its reverse (135406), we get a palindrome (739937).

The spelling of 604531 in words is "six hundred four thousand, five hundred thirty-one".