13928217 has 16 divisors (see below), whose sum is σ = 18923520. Its totient is φ = 9111312.

The previous prime is 13928183. The next prime is 13928221. The reversal of 13928217 is 71282931.

It is not a de Polignac number, because 13928217 - 2⁸ = 13927961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13928237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52828 + ... + 53090.

It is an arithmetic number, because the mean of its divisors is an integer number (1182720).

Almost surely, 2^13928217 is an apocalyptic number.

It is an amenable number.

13928217 is a deficient number, since it is larger than the sum of its proper divisors (4995303).

13928217 is a wasteful number, since it uses less digits than its factorization.

13928217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532.

The product of its digits is 6048, while the sum is 33.

The square root of 13928217 is about 3732.0526523617. The cubic root of 13928217 is about 240.6015983763.

The spelling of 13928217 in words is "thirteen million, nine hundred twenty-eight thousand, two hundred seventeen".