13669943 has 8 divisors (see below), whose sum is σ = 15856512. Its totient is φ = 11541816.

The previous prime is 13669939. The next prime is 13669961. The reversal of 13669943 is 34996631.

13669943 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 13669943 - 2² = 13669939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13669943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13669963) 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, 14105 + ... + 15042.

It is an arithmetic number, because the mean of its divisors is an integer number (1982064).

Almost surely, 2^13669943 is an apocalyptic number.

13669943 is a deficient number, since it is larger than the sum of its proper divisors (2186569).

13669943 is an equidigital number, since it uses as much as digits as its factorization.

13669943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29221.

The product of its digits is 104976, while the sum is 41.

The square root of 13669943 is about 3697.2886011238. The cubic root of 13669943 is about 239.1051339772.

The spelling of 13669943 in words is "thirteen million, six hundred sixty-nine thousand, nine hundred forty-three".