13663317 has 8 divisors (see below), whose sum is σ = 18286560. Its totient is φ = 9074480.

The previous prime is 13663303. The next prime is 13663319. The reversal of 13663317 is 71336631.

13663317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13663317 - 2⁶ = 13663253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13663319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7659 + ... + 9272.

It is an arithmetic number, because the mean of its divisors is an integer number (2285820).

Almost surely, 2^13663317 is an apocalyptic number.

It is an amenable number.

13663317 is a deficient number, since it is larger than the sum of its proper divisors (4623243).

13663317 is a wasteful number, since it uses less digits than its factorization.

13663317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17203.

The product of its digits is 6804, while the sum is 30.

The square root of 13663317 is about 3696.3924304651. The cubic root of 13663317 is about 239.0664952726.

Adding to 13663317 its reverse (71336631), we get a palindrome (84999948).

The spelling of 13663317 in words is "thirteen million, six hundred sixty-three thousand, three hundred seventeen".