11966887 has 2 divisors, whose sum is σ = 11966888. Its totient is φ = 11966886.

The previous prime is 11966881. The next prime is 11966893. The reversal of 11966887 is 78866911.

It is a balanced prime because it is at equal distance from previous prime (11966881) and next prime (11966893).

It is a cyclic number.

It is not a de Polignac number, because 11966887 - 2¹¹ = 11964839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11966881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5983443 + 5983444.

It is an arithmetic number, because the mean of its divisors is an integer number (5983444).

Almost surely, 2^11966887 is an apocalyptic number.

11966887 is a deficient number, since it is larger than the sum of its proper divisors (1).

11966887 is an equidigital number, since it uses as much as digits as its factorization.

11966887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 46.

The square root of 11966887 is about 3459.3188635915. The cubic root of 11966887 is about 228.7320716139.

The spelling of 11966887 in words is "eleven million, nine hundred sixty-six thousand, eight hundred eighty-seven".