12788979 has 8 divisors (see below), whose sum is σ = 19488000. Its totient is φ = 7307976.

The previous prime is 12788977. The next prime is 12788999. The reversal of 12788979 is 97988721.

12788979 is digitally balanced in base 2, 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 not a de Polignac number, because 12788979 - 2¹ = 12788977 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12788977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304479 + ... + 304520.

It is an arithmetic number, because the mean of its divisors is an integer number (2436000).

Almost surely, 2^12788979 is an apocalyptic number.

12788979 is a deficient number, since it is larger than the sum of its proper divisors (6699021).

12788979 is an equidigital number, since it uses as much as digits as its factorization.

12788979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609009.

The product of its digits is 508032, while the sum is 51.

The square root of 12788979 is about 3576.1682007422. The cubic root of 12788979 is about 233.8542631136.

The spelling of 12788979 in words is "twelve million, seven hundred eighty-eight thousand, nine hundred seventy-nine".