12684227 has 8 divisors (see below), whose sum is σ = 13486176. Its totient is φ = 11888512.

The previous prime is 12684209. The next prime is 12684241. The reversal of 12684227 is 72248621.

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

It is a cyclic number.

It is not a de Polignac number, because 12684227 - 2⁶ = 12684163 is a prime.

It is a super-2 number, since 2×12684227² = 321779229175058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12684193 and 12684202.

It is not an unprimeable number, because it can be changed into a prime (12684277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3053 + ... + 5889.

It is an arithmetic number, because the mean of its divisors is an integer number (1685772).

Almost surely, 2^12684227 is an apocalyptic number.

12684227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12684227 is a deficient number, since it is larger than the sum of its proper divisors (801949).

12684227 is a wasteful number, since it uses less digits than its factorization.

12684227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117.

The product of its digits is 10752, while the sum is 32.

The square root of 12684227 is about 3561.4922434283. The cubic root of 12684227 is about 233.2140272164.

The spelling of 12684227 in words is "twelve million, six hundred eighty-four thousand, two hundred twenty-seven".