12777836 has 6 divisors (see below), whose sum is σ = 22361220. Its totient is φ = 6388916.

The previous prime is 12777827. The next prime is 12777889. The reversal of 12777836 is 63877721.

It is a junction number, because it is equal to n+sod(n) for n = 12777793 and 12777802.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1597226 + ... + 1597233.

It is an arithmetic number, because the mean of its divisors is an integer number (3726870).

Almost surely, 2^12777836 is an apocalyptic number.

It is an amenable number.

12777836 is a deficient number, since it is larger than the sum of its proper divisors (9583384).

12777836 is a wasteful number, since it uses less digits than its factorization.

12777836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194463 (or 3194461 counting only the distinct ones).

The product of its digits is 98784, while the sum is 41.

The square root of 12777836 is about 3574.6099087873. The cubic root of 12777836 is about 233.7863245331.

The spelling of 12777836 in words is "twelve million, seven hundred seventy-seven thousand, eight hundred thirty-six".