12777834 has 16 divisors (see below), whose sum is σ = 26667072. Its totient is φ = 4074048.

The previous prime is 12777827. The next prime is 12777889. The reversal of 12777834 is 43877721.

It is a junction number, because it is equal to n+sod(n) for n = 12777792 and 12777801.

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 in 7 ways as a sum of consecutive naturals, for example, 46159 + ... + 46434.

It is an arithmetic number, because the mean of its divisors is an integer number (1666692).

Almost surely, 2^12777834 is an apocalyptic number.

12777834 is an abundant number, since it is smaller than the sum of its proper divisors (13889238).

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

12777834 is a wasteful number, since it uses less digits than its factorization.

12777834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92621.

The product of its digits is 65856, while the sum is 39.

The square root of 12777834 is about 3574.6096290364. The cubic root of 12777834 is about 233.7863123356.

The spelling of 12777834 in words is "twelve million, seven hundred seventy-seven thousand, eight hundred thirty-four".