16663227 has 8 divisors (see below), whose sum is σ = 25391616. Its totient is φ = 9521832.

The previous prime is 16663219. The next prime is 16663243. The reversal of 16663227 is 72236661.

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

It is not a de Polignac number, because 16663227 - 2³ = 16663219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16613227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396723 + ... + 396764.

It is an arithmetic number, because the mean of its divisors is an integer number (3173952).

Almost surely, 2^16663227 is an apocalyptic number.

16663227 is a deficient number, since it is larger than the sum of its proper divisors (8728389).

16663227 is an equidigital number, since it uses as much as digits as its factorization.

16663227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793497.

The product of its digits is 18144, while the sum is 33.

The square root of 16663227 is about 4082.0616114900. The cubic root of 16663227 is about 255.4189039288.

Adding to 16663227 its reverse (72236661), we get a palindrome (88899888).

The spelling of 16663227 in words is "sixteen million, six hundred sixty-three thousand, two hundred twenty-seven".