13647479 has 2 divisors, whose sum is σ = 13647480. Its totient is φ = 13647478.

The previous prime is 13647433. The next prime is 13647493. The reversal of 13647479 is 97474631.

13647479 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13647479 - 2²⁰ = 12598903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13647499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6823739 + 6823740.

It is an arithmetic number, because the mean of its divisors is an integer number (6823740).

Almost surely, 2^13647479 is an apocalyptic number.

13647479 is a deficient number, since it is larger than the sum of its proper divisors (1).

13647479 is an equidigital number, since it uses as much as digits as its factorization.

13647479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 41.

The square root of 13647479 is about 3694.2494501590. The cubic root of 13647479 is about 238.9740872801.

The spelling of 13647479 in words is "thirteen million, six hundred forty-seven thousand, four hundred seventy-nine".