11847091 has 2 divisors, whose sum is σ = 11847092. Its totient is φ = 11847090.

The previous prime is 11847083. The next prime is 11847119. The reversal of 11847091 is 19074811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11847091 - 2³ = 11847083 is a prime.

It is not a weakly prime, because it can be changed into another prime (11847061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5923545 + 5923546.

It is an arithmetic number, because the mean of its divisors is an integer number (5923546).

Almost surely, 2^11847091 is an apocalyptic number.

11847091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11847091 is an equidigital number, since it uses as much as digits as its factorization.

11847091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 11847091 is about 3441.9603425955. The cubic root of 11847091 is about 227.9662602685.

The spelling of 11847091 in words is "eleven million, eight hundred forty-seven thousand, ninety-one".