13563713 has 4 divisors (see below), whose sum is σ = 13628208. Its totient is φ = 13499220.

The previous prime is 13563703. The next prime is 13563733. The reversal of 13563713 is 31736531.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 13563713 - 2⁸ = 13563457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13563703) 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, 31931 + ... + 32352.

It is an arithmetic number, because the mean of its divisors is an integer number (3407052).

Almost surely, 2^13563713 is an apocalyptic number.

It is an amenable number.

13563713 is a deficient number, since it is larger than the sum of its proper divisors (64495).

13563713 is an equidigital number, since it uses as much as digits as its factorization.

13563713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64494.

The product of its digits is 5670, while the sum is 29.

The square root of 13563713 is about 3682.8946495929. The cubic root of 13563713 is about 238.4841555458.

The spelling of 13563713 in words is "thirteen million, five hundred sixty-three thousand, seven hundred thirteen".