13648711 has 4 divisors (see below), whose sum is σ = 14089024. Its totient is φ = 13208400.

The previous prime is 13648699. The next prime is 13648717. The reversal of 13648711 is 11784631.

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 13648711 - 2⁹ = 13648199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 440281 = 13648711 / (1 + 3 + 6 + 4 + 8 + 7 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13648717) 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, 220110 + ... + 220171.

It is an arithmetic number, because the mean of its divisors is an integer number (3522256).

Almost surely, 2^13648711 is an apocalyptic number.

13648711 is a deficient number, since it is larger than the sum of its proper divisors (440313).

13648711 is an equidigital number, since it uses as much as digits as its factorization.

13648711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440312.

The product of its digits is 4032, while the sum is 31.

The square root of 13648711 is about 3694.4161920390. The cubic root of 13648711 is about 238.9812780395.

The spelling of 13648711 in words is "thirteen million, six hundred forty-eight thousand, seven hundred eleven".