13805747 has 2 divisors, whose sum is σ = 13805748. Its totient is φ = 13805746.

The previous prime is 13805741. The next prime is 13805749. The reversal of 13805747 is 74750831.

13805747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13805747 - 2⁴ = 13805731 is a prime.

Together with 13805749, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13805741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6902873 + 6902874.

It is an arithmetic number, because the mean of its divisors is an integer number (6902874).

Almost surely, 2^13805747 is an apocalyptic number.

13805747 is a deficient number, since it is larger than the sum of its proper divisors (1).

13805747 is an equidigital number, since it uses as much as digits as its factorization.

13805747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 13805747 is about 3715.6085638829. The cubic root of 13805747 is about 239.8943226877.

The spelling of 13805747 in words is "thirteen million, eight hundred five thousand, seven hundred forty-seven".