11787966 has 24 divisors (see below), whose sum is σ = 25715664. Its totient is φ = 3902400.

The previous prime is 11787959. The next prime is 11787991. The reversal of 11787966 is 66978711.

It is a super-2 number, since 2×11787966² = 277912284834312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 550 + ... + 4886.

It is an arithmetic number, because the mean of its divisors is an integer number (1071486).

Almost surely, 2^11787966 is an apocalyptic number.

11787966 is an abundant number, since it is smaller than the sum of its proper divisors (13927698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11787966 is a wasteful number, since it uses less digits than its factorization.

11787966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496 (or 4493 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 11787966 is about 3433.3607442271. The cubic root of 11787966 is about 227.5863923386.

The spelling of 11787966 in words is "eleven million, seven hundred eighty-seven thousand, nine hundred sixty-six".