323645 has 12 divisors (see below), whose sum is σ = 452124. Its totient is φ = 221760.

The previous prime is 323641. The next prime is 323647. The reversal of 323645 is 546323.

It can be written as a sum of positive squares in 2 ways, for example, as 219961 + 103684 = 469^2 + 322^2 .

It is not a de Polignac number, because 323645 - 2² = 323641 is a prime.

It is a d-powerful number, because it can be written as 3⁵ + 2¹¹ + 6² + 3¹⁰ + 4⁹ + 5³ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 323645.

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 323645.

It is not an unprimeable number, because it can be changed into a prime (323641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416 + ... + 905.

It is an arithmetic number, because the mean of its divisors is an integer number (37677).

2³²³⁶⁴⁵ is an apocalyptic number.

323645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

323645 is a deficient number, since it is larger than the sum of its proper divisors (128479).

323645 is a wasteful number, since it uses less digits than its factorization.

323645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1333 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 323645 is about 568.8980576518. The cubic root of 323645 is about 68.6577605986.

Adding to 323645 its reverse (546323), we get a palindrome (869968).

It can be divided in two parts, 323 and 645, that multiplied together give a triangular number (208335 = T₆₄₅).

The spelling of 323645 in words is "three hundred twenty-three thousand, six hundred forty-five".