11887091 has 2 divisors, whose sum is σ = 11887092. Its totient is φ = 11887090.

The previous prime is 11887087. The next prime is 11887111. The reversal of 11887091 is 19078811.

11887091 is digitally balanced in base 3, 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 11887091 - 2² = 11887087 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11887081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5943545 + 5943546.

It is an arithmetic number, because the mean of its divisors is an integer number (5943546).

Almost surely, 2^11887091 is an apocalyptic number.

11887091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11887091 is an equidigital number, since it uses as much as digits as its factorization.

11887091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 11887091 is about 3447.7660883534. The cubic root of 11887091 is about 228.2225371614. Note that the first 3 decimals are identical.

The spelling of 11887091 in words is "eleven million, eight hundred eighty-seven thousand, ninety-one".