13855747 has 2 divisors, whose sum is σ = 13855748. Its totient is φ = 13855746.

The previous prime is 13855727. The next prime is 13855757. The reversal of 13855747 is 74755831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13855747 - 2¹⁵ = 13822979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13855717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6927873 + 6927874.

It is an arithmetic number, because the mean of its divisors is an integer number (6927874).

Almost surely, 2^13855747 is an apocalyptic number.

13855747 is a deficient number, since it is larger than the sum of its proper divisors (1).

13855747 is an equidigital number, since it uses as much as digits as its factorization.

13855747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 40.

The square root of 13855747 is about 3722.3308557945. The cubic root of 13855747 is about 240.1835806047.

The spelling of 13855747 in words is "thirteen million, eight hundred fifty-five thousand, seven hundred forty-seven".