12881764 has 12 divisors (see below), whose sum is σ = 25763584. Its totient is φ = 5520744.

The previous prime is 12881741. The next prime is 12881773. The reversal of 12881764 is 46718821.

12881764 is an admirable number.

It is an unprimeable number.

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, 230004 + ... + 230059.

Almost surely, 2^12881764 is an apocalyptic number.

12881764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12881764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12881764 is a wasteful number, since it uses less digits than its factorization.

12881764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460074 (or 460072 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 12881764 is about 3589.1174402630. The cubic root of 12881764 is about 234.4184443080.

It can be divided in two parts, 128817 and 64, that added together give a square (128881 = 359²).

The spelling of 12881764 in words is "twelve million, eight hundred eighty-one thousand, seven hundred sixty-four".