13679843 has 4 divisors (see below), whose sum is σ = 13807800. Its totient is φ = 13551888.

The previous prime is 13679833. The next prime is 13679873. The reversal of 13679843 is 34897631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13679843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13679843.

It is not an unprimeable number, because it can be changed into a prime (13679803) 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, 63818 + ... + 64031.

It is an arithmetic number, because the mean of its divisors is an integer number (3451950).

Almost surely, 2^13679843 is an apocalyptic number.

13679843 is a deficient number, since it is larger than the sum of its proper divisors (127957).

13679843 is a wasteful number, since it uses less digits than its factorization.

13679843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127956.

The product of its digits is 108864, while the sum is 41.

The square root of 13679843 is about 3698.6271777512. The cubic root of 13679843 is about 239.1628413530.

The spelling of 13679843 in words is "thirteen million, six hundred seventy-nine thousand, eight hundred forty-three".