12884479 has 4 divisors (see below), whose sum is σ = 13102920. Its totient is φ = 12666040.

The previous prime is 12884471. The next prime is 12884507. The reversal of 12884479 is 97448821.

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 12884479 - 2³ = 12884471 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 (12884471) 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, 109132 + ... + 109249.

It is an arithmetic number, because the mean of its divisors is an integer number (3275730).

Almost surely, 2^12884479 is an apocalyptic number.

12884479 is a deficient number, since it is larger than the sum of its proper divisors (218441).

12884479 is an equidigital number, since it uses as much as digits as its factorization.

12884479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218440.

The product of its digits is 129024, while the sum is 43.

The square root of 12884479 is about 3589.4956470234. The cubic root of 12884479 is about 234.4349120674.

The spelling of 12884479 in words is "twelve million, eight hundred eighty-four thousand, four hundred seventy-nine".