12776704 has 36 divisors (see below), whose sum is σ = 26398260. Its totient is φ = 6164480.

The previous prime is 12776677. The next prime is 12776711. The reversal of 12776704 is 40767721.

It can be written as a sum of positive squares in 2 ways, for example, as 8111104 + 4665600 = 2848^2 + 2160^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12776704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6564 + ... + 8284.

It is an arithmetic number, because the mean of its divisors is an integer number (733285).

Almost surely, 2^12776704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12776704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13199130).

12776704 is an abundant number, since it is smaller than the sum of its proper divisors (13621556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12776704 is an equidigital number, since it uses as much as digits as its factorization.

12776704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766 (or 1752 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 12776704 is about 3574.4515663245. The cubic root of 12776704 is about 233.7794205488.

The spelling of 12776704 in words is "twelve million, seven hundred seventy-six thousand, seven hundred four".