13983617 has 4 divisors (see below), whose sum is σ = 14127876. Its totient is φ = 13839360.

The previous prime is 13983587. The next prime is 13983647. The reversal of 13983617 is 71638931.

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

It is an interprime number because it is at equal distance from previous prime (13983587) and next prime (13983647).

It can be written as a sum of positive squares in 2 ways, for example, as 5683456 + 8300161 = 2384^2 + 2881^2 .

It is a cyclic number.

It is not a de Polignac number, because 13983617 - 2¹⁰ = 13982593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13983647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71984 + ... + 72177.

It is an arithmetic number, because the mean of its divisors is an integer number (3531969).

Almost surely, 2^13983617 is an apocalyptic number.

It is an amenable number.

13983617 is a deficient number, since it is larger than the sum of its proper divisors (144259).

13983617 is an equidigital number, since it uses as much as digits as its factorization.

13983617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144258.

The product of its digits is 27216, while the sum is 38.

The square root of 13983617 is about 3739.4674754569. The cubic root of 13983617 is about 240.9201769584.

The spelling of 13983617 in words is "thirteen million, nine hundred eighty-three thousand, six hundred seventeen".