6660328 has 16 divisors (see below), whose sum is σ = 13222980. Its totient is φ = 3134208.

The previous prime is 6660307. The next prime is 6660337. The reversal of 6660328 is 8230666.

It can be written as a sum of positive squares in 2 ways, for example, as 6543364 + 116964 = 2558^2 + 342^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6660328.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24351 + ... + 24622.

Almost surely, 2^6660328 is an apocalyptic number.

6660328 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6660328 is a deficient number, since it is larger than the sum of its proper divisors (6562652).

6660328 is a wasteful number, since it uses less digits than its factorization.

6660328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48996 (or 48992 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 6660328 is about 2580.7611280396. The cubic root of 6660328 is about 188.1475377243.

The spelling of 6660328 in words is "six million, six hundred sixty thousand, three hundred twenty-eight".