323228645 has 4 divisors (see below), whose sum is σ = 387874380. Its totient is φ = 258582912.

The previous prime is 323228641. The next prime is 323228651. The reversal of 323228645 is 546822323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190495204 + 132733441 = 13802^2 + 11521^2 .

It is a cyclic number.

It is not a de Polignac number, because 323228645 - 2² = 323228641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323228641) 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, 32322860 + ... + 32322869.

It is an arithmetic number, because the mean of its divisors is an integer number (96968595).

Almost surely, 2^323228645 is an apocalyptic number.

It is an amenable number.

323228645 is a deficient number, since it is larger than the sum of its proper divisors (64645735).

323228645 is an equidigital number, since it uses as much as digits as its factorization.

323228645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64645734.

The product of its digits is 69120, while the sum is 35.

The square root of 323228645 is about 17978.5607043501. The cubic root of 323228645 is about 686.2830623872.

The spelling of 323228645 in words is "three hundred twenty-three million, two hundred twenty-eight thousand, six hundred forty-five".