12766216 has 16 divisors (see below), whose sum is σ = 24389100. Its totient is φ = 6262464.

The previous prime is 12766213. The next prime is 12766217. The reversal of 12766216 is 61266721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12744900 + 21316 = 3570^2 + 146^2 .

It is not an unprimeable number, because it can be changed into a prime (12766213) 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, 14631 + ... + 15478.

Almost surely, 2^12766216 is an apocalyptic number.

It is an amenable number.

12766216 is a deficient number, since it is larger than the sum of its proper divisors (11622884).

12766216 is a wasteful number, since it uses less digits than its factorization.

12766216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30168 (or 30164 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 12766216 is about 3572.9841869227. The cubic root of 12766216 is about 233.7154356129.

The spelling of 12766216 in words is "twelve million, seven hundred sixty-six thousand, two hundred sixteen".