328647423 has 16 divisors (see below), whose sum is σ = 475037696. Its totient is φ = 200901600.

The previous prime is 328647379. The next prime is 328647457. The reversal of 328647423 is 324746823.

It is not a de Polignac number, because 328647423 - 2¹² = 328643327 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328640423) 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, 22015 + ... + 33792.

It is an arithmetic number, because the mean of its divisors is an integer number (29689856).

Almost surely, 2^328647423 is an apocalyptic number.

328647423 is a deficient number, since it is larger than the sum of its proper divisors (146390273).

328647423 is a wasteful number, since it uses less digits than its factorization.

328647423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55974.

The product of its digits is 193536, while the sum is 39.

The square root of 328647423 is about 18128.6354423051. The cubic root of 328647423 is about 690.0969009047.

The spelling of 328647423 in words is "three hundred twenty-eight million, six hundred forty-seven thousand, four hundred twenty-three".