13664703 has 8 divisors (see below), whose sum is σ = 19621168. Its totient is φ = 8409024.

The previous prime is 13664657. The next prime is 13664711. The reversal of 13664703 is 30746631.

13664703 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 not a de Polignac number, because 13664703 - 2²⁰ = 12616127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13664723) 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, 175150 + ... + 175227.

It is an arithmetic number, because the mean of its divisors is an integer number (2452646).

Almost surely, 2^13664703 is an apocalyptic number.

13664703 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13664703 is a deficient number, since it is larger than the sum of its proper divisors (5956465).

13664703 is a wasteful number, since it uses less digits than its factorization.

13664703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350393.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 13664703 is about 3696.5799058048. The cubic root of 13664703 is about 239.0745785943.

Subtracting from 13664703 its product of nonzero digits (9072), we obtain a palindrome (13655631).

The spelling of 13664703 in words is "thirteen million, six hundred sixty-four thousand, seven hundred three".