328810667 has 4 divisors (see below), whose sum is σ = 331017600. Its totient is φ = 326603736.

The previous prime is 328810663. The next prime is 328810673. The reversal of 328810667 is 766018823.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766018823 = 5021 ⋅152563.

It is a cyclic number.

It is not a de Polignac number, because 328810667 - 2² = 328810663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328810663) 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, 1103243 + ... + 1103540.

It is an arithmetic number, because the mean of its divisors is an integer number (82754400).

Almost surely, 2^328810667 is an apocalyptic number.

328810667 is a deficient number, since it is larger than the sum of its proper divisors (2206933).

328810667 is a wasteful number, since it uses less digits than its factorization.

328810667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206932.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 328810667 is about 18133.1372630331. The cubic root of 328810667 is about 690.2111424124.

The spelling of 328810667 in words is "three hundred twenty-eight million, eight hundred ten thousand, six hundred sixty-seven".