13944067 has 4 divisors (see below), whose sum is σ = 13957056. Its totient is φ = 13931080.

The previous prime is 13944061. The next prime is 13944103. The reversal of 13944067 is 76044931.

It is a happy number.

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-13944067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13944061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4723 + ... + 7084.

It is an arithmetic number, because the mean of its divisors is an integer number (3489264).

Almost surely, 2^13944067 is an apocalyptic number.

13944067 is the 2362-nd heptagonal number.

13944067 is a deficient number, since it is larger than the sum of its proper divisors (12989).

13944067 is a wasteful number, since it uses less digits than its factorization.

13944067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12988.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 13944067 is about 3734.1755448827. The cubic root of 13944067 is about 240.6928301944.

Adding to 13944067 its reverse (76044931), we get a palindrome (89988998).

The spelling of 13944067 in words is "thirteen million, nine hundred forty-four thousand, sixty-seven".