12788911 has 4 divisors (see below), whose sum is σ = 12800592. Its totient is φ = 12777232.

The previous prime is 12788891. The next prime is 12788933. The reversal of 12788911 is 11988721.

12788911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12788911 - 2¹¹ = 12786863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12788411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4006 + ... + 6451.

It is an arithmetic number, because the mean of its divisors is an integer number (3200148).

Almost surely, 2^12788911 is an apocalyptic number.

12788911 is a deficient number, since it is larger than the sum of its proper divisors (11681).

12788911 is a wasteful number, since it uses less digits than its factorization.

12788911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11680.

The product of its digits is 8064, while the sum is 37.

The square root of 12788911 is about 3576.1586933468. The cubic root of 12788911 is about 233.8538486391.

The spelling of 12788911 in words is "twelve million, seven hundred eighty-eight thousand, nine hundred eleven".