12788477 has 8 divisors (see below), whose sum is σ = 13802880. Its totient is φ = 11778480.

The previous prime is 12788473. The next prime is 12788497. The reversal of 12788477 is 77488721.

12788477 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12788477 - 2² = 12788473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12788473) 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, 7424 + ... + 8982.

It is an arithmetic number, because the mean of its divisors is an integer number (1725360).

Almost surely, 2^12788477 is an apocalyptic number.

It is an amenable number.

12788477 is a deficient number, since it is larger than the sum of its proper divisors (1014403).

12788477 is a wasteful number, since it uses less digits than its factorization.

12788477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203.

The product of its digits is 175616, while the sum is 44.

The square root of 12788477 is about 3576.0980131982. The cubic root of 12788477 is about 233.8512032818.

The spelling of 12788477 in words is "twelve million, seven hundred eighty-eight thousand, four hundred seventy-seven".