328864093 has 4 divisors (see below), whose sum is σ = 329063040. Its totient is φ = 328665148.

The previous prime is 328864091. The next prime is 328864183. The reversal of 328864093 is 390468823.

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, and also an emirpimes, since its reverse is a distinct semiprime: 390468823 = 643 ⋅607261.

It is a cyclic number.

It is not a de Polignac number, because 328864093 - 2¹ = 328864091 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 (328864091) 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, 96973 + ... + 100306.

It is an arithmetic number, because the mean of its divisors is an integer number (82265760).

Almost surely, 2^328864093 is an apocalyptic number.

It is an amenable number.

328864093 is a deficient number, since it is larger than the sum of its proper divisors (198947).

328864093 is a wasteful number, since it uses less digits than its factorization.

328864093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198946.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 328864093 is about 18134.6103625085. The cubic root of 328864093 is about 690.2485228131.

The spelling of 328864093 in words is "three hundred twenty-eight million, eight hundred sixty-four thousand, ninety-three".