13926217 has 4 divisors (see below), whose sum is σ = 14032656. Its totient is φ = 13819780.

The previous prime is 13926197. The next prime is 13926229. The reversal of 13926217 is 71262931.

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 an emirpimes, since its reverse is a distinct semiprime: 71262931 = 1597 ⋅44623.

It is a cyclic number.

It is not a de Polignac number, because 13926217 - 2⁷ = 13926089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13926257) 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, 53023 + ... + 53284.

It is an arithmetic number, because the mean of its divisors is an integer number (3508164).

Almost surely, 2^13926217 is an apocalyptic number.

It is an amenable number.

13926217 is a deficient number, since it is larger than the sum of its proper divisors (106439).

13926217 is a wasteful number, since it uses less digits than its factorization.

13926217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106438.

The product of its digits is 4536, while the sum is 31.

The square root of 13926217 is about 3731.7846936821. The cubic root of 13926217 is about 240.5900815581.

The spelling of 13926217 in words is "thirteen million, nine hundred twenty-six thousand, two hundred seventeen".