13217927 has 4 divisors (see below), whose sum is σ = 13313160. Its totient is φ = 13122696.

The previous prime is 13217921. The next prime is 13217929. The reversal of 13217927 is 72971231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13217927 - 2⁸ = 13217671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13217893 and 13217902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13217921) 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 3 ways as a sum of consecutive naturals, for example, 47408 + ... + 47685.

It is an arithmetic number, because the mean of its divisors is an integer number (3328290).

Almost surely, 2^13217927 is an apocalyptic number.

13217927 is a deficient number, since it is larger than the sum of its proper divisors (95233).

13217927 is an equidigital number, since it uses as much as digits as its factorization.

13217927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95232.

The product of its digits is 5292, while the sum is 32.

The square root of 13217927 is about 3635.6467100091. The cubic root of 13217927 is about 236.4400901906.

The spelling of 13217927 in words is "thirteen million, two hundred seventeen thousand, nine hundred twenty-seven".