328466663 has 4 divisors (see below), whose sum is σ = 375390480. Its totient is φ = 281542848.

The previous prime is 328466659. The next prime is 328466681. The reversal of 328466663 is 366664823.

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 328466663 - 2² = 328466659 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 (328466603) 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, 23461898 + ... + 23461911.

It is an arithmetic number, because the mean of its divisors is an integer number (93847620).

Almost surely, 2^328466663 is an apocalyptic number.

328466663 is a deficient number, since it is larger than the sum of its proper divisors (46923817).

328466663 is an equidigital number, since it uses as much as digits as its factorization.

328466663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46923816.

The product of its digits is 746496, while the sum is 44.

The square root of 328466663 is about 18123.6492738080. The cubic root of 328466663 is about 689.9703571947.

The spelling of 328466663 in words is "three hundred twenty-eight million, four hundred sixty-six thousand, six hundred sixty-three".