6663028 has 6 divisors (see below), whose sum is σ = 11660306. Its totient is φ = 3331512.

The previous prime is 6662993. The next prime is 6663029. The reversal of 6663028 is 8203666.

It can be written as a sum of positive squares in only one way, i.e., 6411024 + 252004 = 2532^2 + 502^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832875 + ... + 832882.

Almost surely, 2^6663028 is an apocalyptic number.

It is an amenable number.

6663028 is a deficient number, since it is larger than the sum of its proper divisors (4997278).

6663028 is a wasteful number, since it uses less digits than its factorization.

6663028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665761 (or 1665759 counting only the distinct ones).

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

The square root of 6663028 is about 2581.2841765292. The cubic root of 6663028 is about 188.1729583804.

The spelling of 6663028 in words is "six million, six hundred sixty-three thousand, twenty-eight".