13663707 has 4 divisors (see below), whose sum is σ = 18218280. Its totient is φ = 9109136.

The previous prime is 13663703. The next prime is 13663721. The reversal of 13663707 is 70736631.

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 13663707 - 2² = 13663703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13663703) 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, 2277282 + ... + 2277287.

It is an arithmetic number, because the mean of its divisors is an integer number (4554570).

Almost surely, 2^13663707 is an apocalyptic number.

13663707 is a deficient number, since it is larger than the sum of its proper divisors (4554573).

13663707 is an equidigital number, since it uses as much as digits as its factorization.

13663707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554572.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 13663707 is about 3696.4451842277. The cubic root of 13663707 is about 239.0687698556.

The spelling of 13663707 in words is "thirteen million, six hundred sixty-three thousand, seven hundred seven".