16626227 has 4 divisors (see below), whose sum is σ = 16634400. Its totient is φ = 16618056.

The previous prime is 16626223. The next prime is 16626229. The reversal of 16626227 is 72262661.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72262661 = 43 ⋅1680527.

It is a cyclic number.

It is not a de Polignac number, because 16626227 - 2² = 16626223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16626193 and 16626202.

It is not an unprimeable number, because it can be changed into a prime (16626223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649 + ... + 5997.

It is an arithmetic number, because the mean of its divisors is an integer number (4158600).

Almost surely, 2^16626227 is an apocalyptic number.

16626227 is a deficient number, since it is larger than the sum of its proper divisors (8173).

16626227 is an equidigital number, since it uses as much as digits as its factorization.

16626227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8172.

The product of its digits is 12096, while the sum is 32.

The square root of 16626227 is about 4077.5270691928. The cubic root of 16626227 is about 255.2297148259.

Adding to 16626227 its reverse (72262661), we get a palindrome (88888888).

The spelling of 16626227 in words is "sixteen million, six hundred twenty-six thousand, two hundred twenty-seven".