13928417 has 4 divisors (see below), whose sum is σ = 13937856. Its totient is φ = 13918980.

The previous prime is 13928413. The next prime is 13928437. The reversal of 13928417 is 71482931.

13928417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13928417 - 2² = 13928413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13928413) 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, 1973 + ... + 5634.

It is an arithmetic number, because the mean of its divisors is an integer number (3484464).

Almost surely, 2^13928417 is an apocalyptic number.

It is an amenable number.

13928417 is a deficient number, since it is larger than the sum of its proper divisors (9439).

13928417 is an equidigital number, since it uses as much as digits as its factorization.

13928417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9438.

The product of its digits is 12096, while the sum is 35.

The square root of 13928417 is about 3732.0794471715. The cubic root of 13928417 is about 240.6027499975.

The spelling of 13928417 in words is "thirteen million, nine hundred twenty-eight thousand, four hundred seventeen".