12986216 has 16 divisors (see below), whose sum is σ = 24459840. Its totient is φ = 6463600.

The previous prime is 12986213. The next prime is 12986221. The reversal of 12986216 is 61268921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12986213) 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 3 ways as a sum of consecutive naturals, for example, 1760 + ... + 5391.

It is an arithmetic number, because the mean of its divisors is an integer number (1528740).

Almost surely, 2^12986216 is an apocalyptic number.

It is an amenable number.

12986216 is a deficient number, since it is larger than the sum of its proper divisors (11473624).

12986216 is a wasteful number, since it uses less digits than its factorization.

12986216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384 (or 7380 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 12986216 is about 3603.6392716253. The cubic root of 12986216 is about 235.0503347741.

The spelling of 12986216 in words is "twelve million, nine hundred eighty-six thousand, two hundred sixteen".