12766938 has 16 divisors (see below), whose sum is σ = 25576320. Its totient is φ = 4248576.

The previous prime is 12766937. The next prime is 12766967. The reversal of 12766938 is 83966721.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12766938.

It is not an unprimeable number, because it can be changed into a prime (12766933) 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, 3231 + ... + 5997.

It is an arithmetic number, because the mean of its divisors is an integer number (1598520).

Almost surely, 2^12766938 is an apocalyptic number.

12766938 is an abundant number, since it is smaller than the sum of its proper divisors (12809382).

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

12766938 is a wasteful number, since it uses less digits than its factorization.

12766938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541.

The product of its digits is 108864, while the sum is 42.

The square root of 12766938 is about 3573.0852214858. The cubic root of 12766938 is about 233.7198414960.

The spelling of 12766938 in words is "twelve million, seven hundred sixty-six thousand, nine hundred thirty-eight".