13479047 has 4 divisors (see below), whose sum is σ = 13487016. Its totient is φ = 13471080.

The previous prime is 13479043. The next prime is 13479077. The reversal of 13479047 is 74097431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74097431 = 757 ⋅97883.

It is a cyclic number.

It is not a de Polignac number, because 13479047 - 2² = 13479043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13478998 and 13479016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13479043) 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 3 ways as a sum of consecutive naturals, for example, 329 + ... + 5202.

It is an arithmetic number, because the mean of its divisors is an integer number (3371754).

Almost surely, 2^13479047 is an apocalyptic number.

13479047 is a deficient number, since it is larger than the sum of its proper divisors (7969).

13479047 is an equidigital number, since it uses as much as digits as its factorization.

13479047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7968.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 13479047 is about 3671.3821647984. The cubic root of 13479047 is about 237.9869058069.

The spelling of 13479047 in words is "thirteen million, four hundred seventy-nine thousand, forty-seven".