13986417 has 8 divisors (see below), whose sum is σ = 18760896. Its totient is φ = 9268112.

The previous prime is 13986391. The next prime is 13986431. The reversal of 13986417 is 71468931.

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 13986417 - 2¹⁵ = 13953649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13986437) 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 7 ways as a sum of consecutive naturals, for example, 13458 + ... + 14459.

It is an arithmetic number, because the mean of its divisors is an integer number (2345112).

Almost surely, 2^13986417 is an apocalyptic number.

It is an amenable number.

13986417 is a deficient number, since it is larger than the sum of its proper divisors (4774479).

13986417 is a wasteful number, since it uses less digits than its factorization.

13986417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28087.

The product of its digits is 36288, while the sum is 39.

The square root of 13986417 is about 3739.8418415757. The cubic root of 13986417 is about 240.9362560476.

The spelling of 13986417 in words is "thirteen million, nine hundred eighty-six thousand, four hundred seventeen".