13890713 has 4 divisors (see below), whose sum is σ = 13922100. Its totient is φ = 13859328.

The previous prime is 13890707. The next prime is 13890731. The reversal of 13890713 is 31709831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4721929 + 9168784 = 2173^2 + 3028^2 .

It is a cyclic number.

It is not a de Polignac number, because 13890713 - 2¹⁶ = 13825177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13890713.

It is not an unprimeable number, because it can be changed into a prime (13890703) 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, 15020 + ... + 15917.

It is an arithmetic number, because the mean of its divisors is an integer number (3480525).

Almost surely, 2^13890713 is an apocalyptic number.

It is an amenable number.

13890713 is a deficient number, since it is larger than the sum of its proper divisors (31387).

13890713 is an equidigital number, since it uses as much as digits as its factorization.

13890713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31386.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 13890713 is about 3727.0246846513. The cubic root of 13890713 is about 240.3854512178.

The spelling of 13890713 in words is "thirteen million, eight hundred ninety thousand, seven hundred thirteen".