13928259 has 8 divisors (see below), whose sum is σ = 19003072. Its totient is φ = 9069480.

The previous prime is 13928249. The next prime is 13928263. The reversal of 13928259 is 95282931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13928259 - 2⁸ = 13928003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13928249) 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 7 ways as a sum of consecutive naturals, for example, 53857 + ... + 54114.

It is an arithmetic number, because the mean of its divisors is an integer number (2375384).

Almost surely, 2^13928259 is an apocalyptic number.

13928259 is a deficient number, since it is larger than the sum of its proper divisors (5074813).

13928259 is a wasteful number, since it uses less digits than its factorization.

13928259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108017.

The product of its digits is 38880, while the sum is 39.

The square root of 13928259 is about 3732.0582792877. The cubic root of 13928259 is about 240.6018402177.

The spelling of 13928259 in words is "thirteen million, nine hundred twenty-eight thousand, two hundred fifty-nine".