6663453 has 8 divisors (see below), whose sum is σ = 8900928. Its totient is φ = 4434144.

The previous prime is 6663451. The next prime is 6663469. The reversal of 6663453 is 3543666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6663453 - 2¹ = 6663451 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663451) 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 in 7 ways as a sum of consecutive naturals, for example, 225 + ... + 3657.

It is an arithmetic number, because the mean of its divisors is an integer number (1112616).

Almost surely, 2^6663453 is an apocalyptic number.

It is an amenable number.

6663453 is a deficient number, since it is larger than the sum of its proper divisors (2237475).

6663453 is a wasteful number, since it uses less digits than its factorization.

6663453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083.

The product of its digits is 38880, while the sum is 33.

The square root of 6663453 is about 2581.3664985817. The cubic root of 6663453 is about 188.1769591544.

The spelling of 6663453 in words is "six million, six hundred sixty-three thousand, four hundred fifty-three".