328047305 has 8 divisors (see below), whose sum is σ = 393782472. Its totient is φ = 262354048.

The previous prime is 328047287. The next prime is 328047319. The reversal of 328047305 is 503740823.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13623481 + 314423824 = 3691^2 + 17732^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 328047305 - 2⁶ = 328047241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10607 + ... + 27723.

It is an arithmetic number, because the mean of its divisors is an integer number (49222809).

Almost surely, 2^328047305 is an apocalyptic number.

It is an amenable number.

328047305 is a deficient number, since it is larger than the sum of its proper divisors (65735167).

328047305 is a wasteful number, since it uses less digits than its factorization.

328047305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20955.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 328047305 is about 18112.0762200251. The cubic root of 328047305 is about 689.6766005309.

The spelling of 328047305 in words is "three hundred twenty-eight million, forty-seven thousand, three hundred five".