328867549 has 4 divisors (see below), whose sum is σ = 332562780. Its totient is φ = 325172320.

The previous prime is 328867543. The next prime is 328867573. The reversal of 328867549 is 945768823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 225540324 + 103327225 = 15018^2 + 10165^2 .

It is a cyclic number.

It is not a de Polignac number, because 328867549 - 2⁷ = 328867421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328867496 and 328867505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328867543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1847482 + ... + 1847659.

It is an arithmetic number, because the mean of its divisors is an integer number (83140695).

Almost surely, 2^328867549 is an apocalyptic number.

It is an amenable number.

328867549 is a deficient number, since it is larger than the sum of its proper divisors (3695231).

328867549 is an equidigital number, since it uses as much as digits as its factorization.

328867549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695230.

The product of its digits is 2903040, while the sum is 52.

The square root of 328867549 is about 18134.7056496652. The cubic root of 328867549 is about 690.2509407223.

The spelling of 328867549 in words is "three hundred twenty-eight million, eight hundred sixty-seven thousand, five hundred forty-nine".