12808772 has 12 divisors (see below), whose sum is σ = 22459500. Its totient is φ = 6391776.

The previous prime is 12808751. The next prime is 12808777. The reversal of 12808772 is 27780821.

It can be written as a sum of positive squares in 2 ways, for example, as 586756 + 12222016 = 766^2 + 3496^2 .

It is not an unprimeable number, because it can be changed into a prime (12808777) 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, 647 + ... + 5102.

It is an arithmetic number, because the mean of its divisors is an integer number (1871625).

Almost surely, 2^12808772 is an apocalyptic number.

It is an amenable number.

12808772 is a deficient number, since it is larger than the sum of its proper divisors (9650728).

12808772 is a wasteful number, since it uses less digits than its factorization.

12808772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6310 (or 6308 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 12808772 is about 3578.9344783050. The cubic root of 12808772 is about 233.9748432790.

The spelling of 12808772 in words is "twelve million, eight hundred eight thousand, seven hundred seventy-two".