328964505 has 16 divisors (see below), whose sum is σ = 527281920. Its totient is φ = 175134848.

The previous prime is 328964483. The next prime is 328964509. The reversal of 328964505 is 505469823.

It is a cyclic number.

It is not a de Polignac number, because 328964505 - 2¹² = 328960409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (328964509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10737 + ... + 27806.

It is an arithmetic number, because the mean of its divisors is an integer number (32955120).

Almost surely, 2^328964505 is an apocalyptic number.

It is an amenable number.

328964505 is a deficient number, since it is larger than the sum of its proper divisors (198317415).

328964505 is a wasteful number, since it uses less digits than its factorization.

328964505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39120.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 328964505 is about 18137.3786694770. The cubic root of 328964505 is about 690.3187668068.

It can be divided in two parts, 32896 and 4505, that added together give a triangular number (37401 = T₂₇₃).

The spelling of 328964505 in words is "three hundred twenty-eight million, nine hundred sixty-four thousand, five hundred five".