328672664 has 16 divisors (see below), whose sum is σ = 636141120. Its totient is φ = 159035040.

The previous prime is 328672661. The next prime is 328672717. The reversal of 328672664 is 466276823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328672661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662399 + ... + 662894.

It is an arithmetic number, because the mean of its divisors is an integer number (39758820).

Almost surely, 2^328672664 is an apocalyptic number.

It is an amenable number.

328672664 is a deficient number, since it is larger than the sum of its proper divisors (307468456).

328672664 is a wasteful number, since it uses less digits than its factorization.

328672664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325330 (or 1325326 counting only the distinct ones).

The product of its digits is 580608, while the sum is 44.

The square root of 328672664 is about 18129.3315927532. The cubic root of 328672664 is about 690.1145675476.

The spelling of 328672664 in words is "three hundred twenty-eight million, six hundred seventy-two thousand, six hundred sixty-four".