13478659 has 4 divisors (see below), whose sum is σ = 13487416. Its totient is φ = 13469904.

The previous prime is 13478653. The next prime is 13478669. The reversal of 13478659 is 95687431.

13478659 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 13478659 - 2²¹ = 11381507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13478653) 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, 1389 + ... + 5374.

It is an arithmetic number, because the mean of its divisors is an integer number (3371854).

Almost surely, 2^13478659 is an apocalyptic number.

13478659 is a deficient number, since it is larger than the sum of its proper divisors (8757).

13478659 is an equidigital number, since it uses as much as digits as its factorization.

13478659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8756.

The product of its digits is 181440, while the sum is 43.

The square root of 13478659 is about 3671.3293232833. The cubic root of 13478659 is about 237.9846222675.

The spelling of 13478659 in words is "thirteen million, four hundred seventy-eight thousand, six hundred fifty-nine".