5663872 has 16 divisors (see below), whose sum is σ = 11283750. Its totient is φ = 2831872.

The previous prime is 5663821. The next prime is 5663887. The reversal of 5663872 is 2783665.

It can be written as a sum of positive squares in only one way, i.e., 5645376 + 18496 = 2376^2 + 136^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21997 + ... + 22252.

Almost surely, 2^5663872 is an apocalyptic number.

It is an amenable number.

5663872 is a deficient number, since it is larger than the sum of its proper divisors (5619878).

5663872 is an equidigital number, since it uses as much as digits as its factorization.

5663872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44263 (or 44251 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 5663872 is about 2379.8890730452. The cubic root of 5663872 is about 178.2533949430.

The spelling of 5663872 in words is "five million, six hundred sixty-three thousand, eight hundred seventy-two".