664583 has 2 divisors, whose sum is σ = 664584. Its totient is φ = 664582.

The previous prime is 664579. The next prime is 664589. The reversal of 664583 is 385466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664583 - 2² = 664579 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 664583.

It is not a weakly prime, because it can be changed into another prime (664589) by changing a digit.

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, 332291 + 332292.

It is an arithmetic number, because the mean of its divisors is an integer number (332292).

2⁶⁶⁴⁵⁸³ is an apocalyptic number.

664583 is a deficient number, since it is larger than the sum of its proper divisors (1).

664583 is an equidigital number, since it uses as much as digits as its factorization.

664583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 664583 is about 815.2196023158. The cubic root of 664583 is about 87.2669389640.

The spelling of 664583 in words is "six hundred sixty-four thousand, five hundred eighty-three".