13923709 has 8 divisors (see below), whose sum is σ = 14100480. Its totient is φ = 13748400.

The previous prime is 13923691. The next prime is 13923719. The reversal of 13923709 is 90732931.

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 13923709 - 2¹⁵ = 13890941 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 (13923719) 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, 51244 + ... + 51514.

It is an arithmetic number, because the mean of its divisors is an integer number (1762560).

Almost surely, 2^13923709 is an apocalyptic number.

It is an amenable number.

13923709 is a deficient number, since it is larger than the sum of its proper divisors (176771).

13923709 is a wasteful number, since it uses less digits than its factorization.

13923709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 13923709 is about 3731.4486463035. The cubic root of 13923709 is about 240.5756379096.

The spelling of 13923709 in words is "thirteen million, nine hundred twenty-three thousand, seven hundred nine".