12618479 has 4 divisors (see below), whose sum is σ = 12911976. Its totient is φ = 12324984.

The previous prime is 12618469. The next prime is 12618481. The reversal of 12618479 is 97481621.

12618479 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 a de Polignac number, because none of the positive numbers 2^k-12618479 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 (12618449) 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, 146684 + ... + 146769.

It is an arithmetic number, because the mean of its divisors is an integer number (3227994).

Almost surely, 2^12618479 is an apocalyptic number.

12618479 is a deficient number, since it is larger than the sum of its proper divisors (293497).

12618479 is an equidigital number, since it uses as much as digits as its factorization.

12618479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293496.

The product of its digits is 24192, while the sum is 38.

The square root of 12618479 is about 3552.2498504469. The cubic root of 12618479 is about 232.8103782429.

The spelling of 12618479 in words is "twelve million, six hundred eighteen thousand, four hundred seventy-nine".