13966939 has 8 divisors (see below), whose sum is σ = 16033760. Its totient is φ = 11918016.

The previous prime is 13966879. The next prime is 13966949. The reversal of 13966939 is 93966931.

13966939 is digitally balanced in base 3, 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 13966939 - 2⁷ = 13966811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13966949) 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, 2754 + ... + 5959.

It is an arithmetic number, because the mean of its divisors is an integer number (2004220).

Almost surely, 2^13966939 is an apocalyptic number.

13966939 is a deficient number, since it is larger than the sum of its proper divisors (2066821).

13966939 is an equidigital number, since it uses as much as digits as its factorization.

13966939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8949.

The product of its digits is 236196, while the sum is 46.

The square root of 13966939 is about 3737.2368134760. The cubic root of 13966939 is about 240.8243585161.

The spelling of 13966939 in words is "thirteen million, nine hundred sixty-six thousand, nine hundred thirty-nine".