11805247 has 2 divisors, whose sum is σ = 11805248. Its totient is φ = 11805246.

The previous prime is 11805221. The next prime is 11805271. The reversal of 11805247 is 74250811.

11805247 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 11805247 - 2⁷ = 11805119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11805217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5902623 + 5902624.

It is an arithmetic number, because the mean of its divisors is an integer number (5902624).

Almost surely, 2^11805247 is an apocalyptic number.

11805247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11805247 is an equidigital number, since it uses as much as digits as its factorization.

11805247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 11805247 is about 3435.8764529593. The cubic root of 11805247 is about 227.6975509032.

The spelling of 11805247 in words is "eleven million, eight hundred five thousand, two hundred forty-seven".