11771087 has 2 divisors, whose sum is σ = 11771088. Its totient is φ = 11771086.

The previous prime is 11771077. The next prime is 11771099. The reversal of 11771087 is 78017711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11771087 - 2¹⁴ = 11754703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11771077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5885543 + 5885544.

It is an arithmetic number, because the mean of its divisors is an integer number (5885544).

Almost surely, 2^11771087 is an apocalyptic number.

11771087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11771087 is an equidigital number, since it uses as much as digits as its factorization.

11771087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2744, while the sum is 32.

The square root of 11771087 is about 3430.9017765013. The cubic root of 11771087 is about 227.4777146790.

Adding to 11771087 its reverse (78017711), we get a palindrome (89788798).

The spelling of 11771087 in words is "eleven million, seven hundred seventy-one thousand, eighty-seven".