12418779 has 4 divisors (see below), whose sum is σ = 16558376. Its totient is φ = 8279184.

The previous prime is 12418753. The next prime is 12418811. The reversal of 12418779 is 97781421.

12418779 is digitally balanced in base 3, 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 de Polignac number, because none of the positive numbers 2^k-12418779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12418729) 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, 2069794 + ... + 2069799.

It is an arithmetic number, because the mean of its divisors is an integer number (4139594).

Almost surely, 2^12418779 is an apocalyptic number.

12418779 is a deficient number, since it is larger than the sum of its proper divisors (4139597).

12418779 is an equidigital number, since it uses as much as digits as its factorization.

12418779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139596.

The product of its digits is 28224, while the sum is 39.

The square root of 12418779 is about 3524.0288023795. The cubic root of 12418779 is about 231.5756897115.

The spelling of 12418779 in words is "twelve million, four hundred eighteen thousand, seven hundred seventy-nine".