325609 has 4 divisors (see below), whose sum is σ = 329616. Its totient is φ = 321604.

The previous prime is 325607. The next prime is 325627. The reversal of 325609 is 906523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 325609 - 2¹ = 325607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325607) 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, 1879 + ... + 2044.

It is an arithmetic number, because the mean of its divisors is an integer number (82404).

2³²⁵⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

325609 is a deficient number, since it is larger than the sum of its proper divisors (4007).

325609 is an equidigital number, since it uses as much as digits as its factorization.

325609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 325609 is about 570.6215908989. The cubic root of 325609 is about 68.7963610163.

The spelling of 325609 in words is "three hundred twenty-five thousand, six hundred nine".