12770786 has 16 divisors (see below), whose sum is σ = 22265280. Its totient is φ = 5380080.

The previous prime is 12770749. The next prime is 12770789. The reversal of 12770786 is 68707721.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12770789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6905 + ... + 8556.

It is an arithmetic number, because the mean of its divisors is an integer number (1391580).

Almost surely, 2^12770786 is an apocalyptic number.

12770786 is a deficient number, since it is larger than the sum of its proper divisors (9494494).

12770786 is a wasteful number, since it uses less digits than its factorization.

12770786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15529.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 12770786 is about 3573.6236511418. The cubic root of 12770786 is about 233.7433204646.

The spelling of 12770786 in words is "twelve million, seven hundred seventy thousand, seven hundred eighty-six".