13669217 has 4 divisors (see below), whose sum is σ = 13679280. Its totient is φ = 13659156.

The previous prime is 13669211. The next prime is 13669247. The reversal of 13669217 is 71296631.

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 13669217 - 2¹² = 13665121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13669211) 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, 2603 + ... + 5840.

It is an arithmetic number, because the mean of its divisors is an integer number (3419820).

Almost surely, 2^13669217 is an apocalyptic number.

It is an amenable number.

13669217 is a deficient number, since it is larger than the sum of its proper divisors (10063).

13669217 is an equidigital number, since it uses as much as digits as its factorization.

13669217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10062.

The product of its digits is 13608, while the sum is 35.

The square root of 13669217 is about 3697.1904197647. The cubic root of 13669217 is about 239.1009010066.

The spelling of 13669217 in words is "thirteen million, six hundred sixty-nine thousand, two hundred seventeen".