12647479 has 8 divisors (see below), whose sum is σ = 13669040. Its totient is φ = 11632896.

The previous prime is 12647477. The next prime is 12647489. The reversal of 12647479 is 97474621.

12647479 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 12647479 - 2¹ = 12647477 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 (12647477) 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, 2407 + ... + 5575.

It is an arithmetic number, because the mean of its divisors is an integer number (1708630).

Almost surely, 2^12647479 is an apocalyptic number.

12647479 is a deficient number, since it is larger than the sum of its proper divisors (1021561).

12647479 is a wasteful number, since it uses less digits than its factorization.

12647479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489.

The product of its digits is 84672, while the sum is 40.

The square root of 12647479 is about 3556.3294279355. The cubic root of 12647479 is about 232.9885913600.

The spelling of 12647479 in words is "twelve million, six hundred forty-seven thousand, four hundred seventy-nine".