328897667 has 4 divisors (see below), whose sum is σ = 375883056. Its totient is φ = 281912280.

The previous prime is 328897663. The next prime is 328897711. The reversal of 328897667 is 766798823.

It is a happy number.

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 328897667 - 2² = 328897663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328897661) 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, 23492684 + ... + 23492697.

It is an arithmetic number, because the mean of its divisors is an integer number (93970764).

Almost surely, 2^328897667 is an apocalyptic number.

328897667 is a deficient number, since it is larger than the sum of its proper divisors (46985389).

328897667 is an equidigital number, since it uses as much as digits as its factorization.

328897667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46985388.

The product of its digits is 6096384, while the sum is 56.

The square root of 328897667 is about 18135.5360273690. The cubic root of 328897667 is about 690.2720113563.

The spelling of 328897667 in words is "three hundred twenty-eight million, eight hundred ninety-seven thousand, six hundred sixty-seven".