604565623 has 4 divisors (see below), whose sum is σ = 619311168. Its totient is φ = 589820080.

The previous prime is 604565597. The next prime is 604565629. The reversal of 604565623 is 326565406.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326565406 = 2 ⋅163282703.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-604565623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604565629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7372711 + ... + 7372792.

It is an arithmetic number, because the mean of its divisors is an integer number (154827792).

Almost surely, 2^604565623 is an apocalyptic number.

604565623 is a deficient number, since it is larger than the sum of its proper divisors (14745545).

604565623 is a wasteful number, since it uses less digits than its factorization.

604565623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14745544.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 604565623 is about 24587.9161988160. The cubic root of 604565623 is about 845.5665926795.

The spelling of 604565623 in words is "six hundred four million, five hundred sixty-five thousand, six hundred twenty-three".