5638216 has 8 divisors (see below), whose sum is σ = 10571670. Its totient is φ = 2819104.

The previous prime is 5638207. The next prime is 5638219. The reversal of 5638216 is 6128365.

5638216 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 21316 = 2370^2 + 146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (5638219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352381 + ... + 352396.

Almost surely, 2^5638216 is an apocalyptic number.

It is an amenable number.

5638216 is a deficient number, since it is larger than the sum of its proper divisors (4933454).

5638216 is a wasteful number, since it uses less digits than its factorization.

5638216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704783 (or 704779 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 5638216 is about 2374.4927879444. The cubic root of 5638216 is about 177.9838389569.

The spelling of 5638216 in words is "five million, six hundred thirty-eight thousand, two hundred sixteen".