12706216 has 16 divisors (see below), whose sum is σ = 23905440. Its totient is φ = 6331440.

The previous prime is 12706171. The next prime is 12706217. The reversal of 12706216 is 61260721.

It is a super-2 number, since 2×12706216² = 322895850077312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12706217) 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, 66 + ... + 5041.

It is an arithmetic number, because the mean of its divisors is an integer number (1494090).

Almost surely, 2^12706216 is an apocalyptic number.

It is an amenable number.

12706216 is a deficient number, since it is larger than the sum of its proper divisors (11199224).

12706216 is a wasteful number, since it uses less digits than its factorization.

12706216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5424 (or 5420 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12706216 is about 3564.5779553827. The cubic root of 12706216 is about 233.3487137254.

Adding to 12706216 its reverse (61260721), we get a palindrome (73966937).

The spelling of 12706216 in words is "twelve million, seven hundred six thousand, two hundred sixteen".