13856713 has 4 divisors (see below), whose sum is σ = 14922628. Its totient is φ = 12790800.

The previous prime is 13856671. The next prime is 13856723. The reversal of 13856713 is 31765831.

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 8111104 + 5745609 = 2848^2 + 2397^2 .

It is a cyclic number.

It is not a de Polignac number, because 13856713 - 2¹³ = 13848521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13856723) 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, 532938 + ... + 532963.

It is an arithmetic number, because the mean of its divisors is an integer number (3730657).

Almost surely, 2^13856713 is an apocalyptic number.

13856713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13856713 is a deficient number, since it is larger than the sum of its proper divisors (1065915).

13856713 is a wasteful number, since it uses less digits than its factorization.

13856713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065914.

The product of its digits is 15120, while the sum is 34.

The square root of 13856713 is about 3722.4606109400. The cubic root of 13856713 is about 240.1891622103.

The spelling of 13856713 in words is "thirteen million, eight hundred fifty-six thousand, seven hundred thirteen".