660328 has 16 divisors (see below), whose sum is σ = 1260000. Its totient is φ = 324336.

The previous prime is 660299. The next prime is 660329. The reversal of 660328 is 823066.

It is not an unprimeable number, because it can be changed into a prime (660329) 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, 228 + ... + 1171.

It is an arithmetic number, because the mean of its divisors is an integer number (78750).

2⁶⁶⁰³²⁸ is an apocalyptic number.

It is an amenable number.

660328 is a deficient number, since it is larger than the sum of its proper divisors (599672).

660328 is a wasteful number, since it uses less digits than its factorization.

660328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 660328 is about 812.6056854342. The cubic root of 660328 is about 87.0802975573.

The spelling of 660328 in words is "six hundred sixty thousand, three hundred twenty-eight".