13653671 has 4 divisors (see below), whose sum is σ = 14094144. Its totient is φ = 13213200.

The previous prime is 13653659. The next prime is 13653707. The reversal of 13653671 is 17635631.

13653671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13653671 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 (13653611) 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, 220190 + ... + 220251.

It is an arithmetic number, because the mean of its divisors is an integer number (3523536).

Almost surely, 2^13653671 is an apocalyptic number.

13653671 is a deficient number, since it is larger than the sum of its proper divisors (440473).

13653671 is an equidigital number, since it uses as much as digits as its factorization.

13653671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440472.

The product of its digits is 11340, while the sum is 32.

The square root of 13653671 is about 3695.0874143922. The cubic root of 13653671 is about 239.0102234733.

The spelling of 13653671 in words is "thirteen million, six hundred fifty-three thousand, six hundred seventy-one".