12885776 has 20 divisors (see below), whose sum is σ = 25249500. Its totient is φ = 6369792.

The previous prime is 12885751. The next prime is 12885791. The reversal of 12885776 is 67758821.

It can be written as a sum of positive squares in 2 ways, for example, as 6635776 + 6250000 = 2576^2 + 2500^2 .

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, 3101 + ... + 5948.

It is an arithmetic number, because the mean of its divisors is an integer number (1262475).

Almost surely, 2^12885776 is an apocalyptic number.

12885776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12885776 is a deficient number, since it is larger than the sum of its proper divisors (12363724).

12885776 is an equidigital number, since it uses as much as digits as its factorization.

12885776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9146 (or 9140 counting only the distinct ones).

The product of its digits is 188160, while the sum is 44.

The square root of 12885776 is about 3589.6763085270. The cubic root of 12885776 is about 234.4427781694.

The spelling of 12885776 in words is "twelve million, eight hundred eighty-five thousand, seven hundred seventy-six".