11980766 has 16 divisors (see below), whose sum is σ = 20876640. Its totient is φ = 5050080.

The previous prime is 11980763. The next prime is 11980777. The reversal of 11980766 is 66708911.

11980766 = T₅₉₆ + T₅₉₇ + ... + T₆₅₆.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11980763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6161 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (1304790).

Almost surely, 2^11980766 is an apocalyptic number.

11980766 is a deficient number, since it is larger than the sum of its proper divisors (8895874).

11980766 is a wasteful number, since it uses less digits than its factorization.

11980766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14099.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 11980766 is about 3461.3243130340. The cubic root of 11980766 is about 228.8204640237.

The spelling of 11980766 in words is "eleven million, nine hundred eighty thousand, seven hundred sixty-six".