5663816 has 16 divisors (see below), whose sum is σ = 10986300. Its totient is φ = 2734144.

The previous prime is 5663807. The next prime is 5663821. The reversal of 5663816 is 6183665.

It can be written as a sum of positive squares in 2 ways, for example, as 5541316 + 122500 = 2354^2 + 350^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11975 + ... + 12438.

Almost surely, 2^5663816 is an apocalyptic number.

It is an amenable number.

5663816 is a deficient number, since it is larger than the sum of its proper divisors (5322484).

5663816 is a wasteful number, since it uses less digits than its factorization.

5663816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24448 (or 24444 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 5663816 is about 2379.8773077619. The cubic root of 5663816 is about 178.2528074637.

The spelling of 5663816 in words is "five million, six hundred sixty-three thousand, eight hundred sixteen".