13654643 has 2 divisors, whose sum is σ = 13654644. Its totient is φ = 13654642.

The previous prime is 13654639. The next prime is 13654687. The reversal of 13654643 is 34645631.

13654643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13654643 - 2² = 13654639 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13654243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6827321 + 6827322.

It is an arithmetic number, because the mean of its divisors is an integer number (6827322).

Almost surely, 2^13654643 is an apocalyptic number.

13654643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13654643 is an equidigital number, since it uses as much as digits as its factorization.

13654643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 32.

The square root of 13654643 is about 3695.2189380333. The cubic root of 13654643 is about 239.0158950231.

The spelling of 13654643 in words is "thirteen million, six hundred fifty-four thousand, six hundred forty-three".