13944709 has 8 divisors (see below), whose sum is σ = 15016320. Its totient is φ = 12901056.

The previous prime is 13944703. The next prime is 13944713. The reversal of 13944709 is 90744931.

13944709 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 13944709 - 2⁹ = 13944197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13944703) 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, 5949 + ... + 7954.

It is an arithmetic number, because the mean of its divisors is an integer number (1877040).

Almost surely, 2^13944709 is an apocalyptic number.

It is an amenable number.

13944709 is a deficient number, since it is larger than the sum of its proper divisors (1071611).

13944709 is a wasteful number, since it uses less digits than its factorization.

13944709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13979.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 13944709 is about 3734.2615066436. The cubic root of 13944709 is about 240.6965240575.

The spelling of 13944709 in words is "thirteen million, nine hundred forty-four thousand, seven hundred nine".