13678579 has 4 divisors (see below), whose sum is σ = 13902880. Its totient is φ = 13454280.

The previous prime is 13678571. The next prime is 13678589. The reversal of 13678579 is 97587631.

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 13678579 - 2³ = 13678571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13678571) 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, 112059 + ... + 112180.

It is an arithmetic number, because the mean of its divisors is an integer number (3475720).

Almost surely, 2^13678579 is an apocalyptic number.

13678579 is a deficient number, since it is larger than the sum of its proper divisors (224301).

13678579 is an equidigital number, since it uses as much as digits as its factorization.

13678579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224300.

The product of its digits is 317520, while the sum is 46.

The square root of 13678579 is about 3698.4562995931. The cubic root of 13678579 is about 239.1554750125.

The spelling of 13678579 in words is "thirteen million, six hundred seventy-eight thousand, five hundred seventy-nine".