326603 has 4 divisors (see below), whose sum is σ = 333600. Its totient is φ = 319608.

The previous prime is 326597. The next prime is 326609. The reversal of 326603 is 306623.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306623 = 59 ⋅5197.

It is an interprime number because it is at equal distance from previous prime (326597) and next prime (326609).

It is a cyclic number.

It is not a de Polignac number, because 326603 - 2⁶ = 326539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326609) 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, 3428 + ... + 3521.

It is an arithmetic number, because the mean of its divisors is an integer number (83400).

2³²⁶⁶⁰³ is an apocalyptic number.

326603 is a deficient number, since it is larger than the sum of its proper divisors (6997).

326603 is an equidigital number, since it uses as much as digits as its factorization.

326603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 326603 is about 571.4919072043. The cubic root of 326603 is about 68.8662957282.

Adding to 326603 its sum of digits (20), we get a palindrome (326623).

It can be divided in two parts, 326 and 603, that added together give a palindrome (929).

The spelling of 326603 in words is "three hundred twenty-six thousand, six hundred three".