328815223 has 4 divisors (see below), whose sum is σ = 358707528. Its totient is φ = 298922920.

The previous prime is 328815211. The next prime is 328815229. The reversal of 328815223 is 322518823.

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

It is a cyclic number.

It is not a de Polignac number, because 328815223 - 2⁵ = 328815191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328815229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14946136 + ... + 14946157.

It is an arithmetic number, because the mean of its divisors is an integer number (89676882).

Almost surely, 2^328815223 is an apocalyptic number.

328815223 is a deficient number, since it is larger than the sum of its proper divisors (29892305).

328815223 is a wasteful number, since it uses less digits than its factorization.

328815223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29892304.

The product of its digits is 23040, while the sum is 34.

The square root of 328815223 is about 18133.2628889563. The cubic root of 328815223 is about 690.2143302525.

The spelling of 328815223 in words is "three hundred twenty-eight million, eight hundred fifteen thousand, two hundred twenty-three".