5663668 has 12 divisors (see below), whose sum is σ = 10037440. Its totient is φ = 2795832.

The previous prime is 5663657. The next prime is 5663689. The reversal of 5663668 is 8663665.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5663668.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8646 + ... + 9277.

Almost surely, 2^5663668 is an apocalyptic number.

It is an amenable number.

5663668 is a deficient number, since it is larger than the sum of its proper divisors (4373772).

5663668 is a wasteful number, since it uses less digits than its factorization.

5663668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18006 (or 18004 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 5663668 is about 2379.8462135188. The cubic root of 5663668 is about 178.2512548212.

The spelling of 5663668 in words is "five million, six hundred sixty-three thousand, six hundred sixty-eight".