323609 has 16 divisors (see below), whose sum is σ = 397824. Its totient is φ = 259200.

The previous prime is 323599. The next prime is 323623. The reversal of 323609 is 906323.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (323699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4397 + ... + 4469.

It is an arithmetic number, because the mean of its divisors is an integer number (24864).

2³²³⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

323609 is a deficient number, since it is larger than the sum of its proper divisors (74215).

323609 is a wasteful number, since it uses less digits than its factorization.

323609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 323609 is about 568.8664166568. The cubic root of 323609 is about 68.6552148349.

The spelling of 323609 in words is "three hundred twenty-three thousand, six hundred nine".