326609 has 2 divisors, whose sum is σ = 326610. Its totient is φ = 326608.

The previous prime is 326597. The next prime is 326611. The reversal of 326609 is 906623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297025 + 29584 = 545^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 326609 - 2⁴ = 326593 is a prime.

Together with 326611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (326659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163304 + 163305.

It is an arithmetic number, because the mean of its divisors is an integer number (163305).

2³²⁶⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

326609 is a deficient number, since it is larger than the sum of its proper divisors (1).

326609 is an equidigital number, since it uses as much as digits as its factorization.

326609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 326609 is about 571.4971565984. The cubic root of 326609 is about 68.8667174382.

The spelling of 326609 in words is "three hundred twenty-six thousand, six hundred nine".