13679643 has 8 divisors (see below), whose sum is σ = 18316800. Its totient is φ = 9081128.

The previous prime is 13679623. The next prime is 13679669. The reversal of 13679643 is 34697631.

13679643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13679643 - 2⁹ = 13679131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13679623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8823 + ... + 10256.

It is an arithmetic number, because the mean of its divisors is an integer number (2289600).

Almost surely, 2^13679643 is an apocalyptic number.

13679643 is a deficient number, since it is larger than the sum of its proper divisors (4637157).

13679643 is a wasteful number, since it uses less digits than its factorization.

13679643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19321.

The product of its digits is 81648, while the sum is 39.

The square root of 13679643 is about 3698.6001405937. The cubic root of 13679643 is about 239.1616758230.

The spelling of 13679643 in words is "thirteen million, six hundred seventy-nine thousand, six hundred forty-three".