13999611 has 8 divisors (see below), whose sum is σ = 18876240. Its totient is φ = 9228032.

The previous prime is 13999603. The next prime is 13999621. The reversal of 13999611 is 11699931.

It is a happy number.

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 13999611 - 2³ = 13999603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13999611.

It is not an unprimeable number, because it can be changed into a prime (13999621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25950 + ... + 26483.

It is an arithmetic number, because the mean of its divisors is an integer number (2359530).

Almost surely, 2^13999611 is an apocalyptic number.

13999611 is a deficient number, since it is larger than the sum of its proper divisors (4876629).

13999611 is an equidigital number, since it uses as much as digits as its factorization.

13999611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52525.

The product of its digits is 13122, while the sum is 39.

The square root of 13999611 is about 3741.6054041013. The cubic root of 13999611 is about 241.0119941460.

The spelling of 13999611 in words is "thirteen million, nine hundred ninety-nine thousand, six hundred eleven".