33668663 has 8 divisors (see below), whose sum is σ = 38521728. Its totient is φ = 28826424.

The previous prime is 33668651. The next prime is 33668693. The reversal of 33668663 is 36686633.

33668663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 33668663 - 2⁶ = 33668599 is a prime.

It is a super-2 number, since 2×33668663² = 2267157736415138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33668663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33668693) 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, 5720 + ... + 10002.

It is an arithmetic number, because the mean of its divisors is an integer number (4815216).

Almost surely, 2^33668663 is an apocalyptic number.

33668663 is a deficient number, since it is larger than the sum of its proper divisors (4853065).

33668663 is a wasteful number, since it uses less digits than its factorization.

33668663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413.

The product of its digits is 279936, while the sum is 41.

The square root of 33668663 is about 5802.4704221564. The cubic root of 33668663 is about 322.9053868905.

The spelling of 33668663 in words is "thirty-three million, six hundred sixty-eight thousand, six hundred sixty-three".