12856016 has 10 divisors (see below), whose sum is σ = 24908562. Its totient is φ = 6428000.

The previous prime is 12856013. The next prime is 12856021. The reversal of 12856016 is 61065821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11155600 + 1700416 = 3340^2 + 1304^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12856016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401735 + ... + 401766.

Almost surely, 2^12856016 is an apocalyptic number.

12856016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12856016 is a deficient number, since it is larger than the sum of its proper divisors (12052546).

12856016 is an equidigital number, since it uses as much as digits as its factorization.

12856016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803509 (or 803503 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12856016 is about 3585.5286918389. The cubic root of 12856016 is about 234.2621553603.

The spelling of 12856016 in words is "twelve million, eight hundred fifty-six thousand, sixteen".