12779768 has 16 divisors (see below), whose sum is σ = 24000000. Its totient is φ = 6379776.

The previous prime is 12779713. The next prime is 12779779. The reversal of 12779768 is 86797721.

It is a zygodrome in base 2.

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, 9353 + ... + 10631.

It is an arithmetic number, because the mean of its divisors is an integer number (1500000).

Almost surely, 2^12779768 is an apocalyptic number.

It is an amenable number.

12779768 is a deficient number, since it is larger than the sum of its proper divisors (11220232).

12779768 is a wasteful number, since it uses less digits than its factorization.

12779768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534 (or 2530 counting only the distinct ones).

The product of its digits is 296352, while the sum is 47.

The square root of 12779768 is about 3574.8801378508. The cubic root of 12779768 is about 233.7981067163.

The spelling of 12779768 in words is "twelve million, seven hundred seventy-nine thousand, seven hundred sixty-eight".