11871966 has 8 divisors (see below), whose sum is σ = 23743944. Its totient is φ = 3957320.

The previous prime is 11871929. The next prime is 11871973. The reversal of 11871966 is 66917811.

It is a sphenic number, since it is the product of 3 distinct primes.

11871966 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989325 + ... + 989336.

It is an arithmetic number, because the mean of its divisors is an integer number (2967993).

Almost surely, 2^11871966 is an apocalyptic number.

11871966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11871966 is a wasteful number, since it uses less digits than its factorization.

11871966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978666.

The product of its digits is 18144, while the sum is 39.

The square root of 11871966 is about 3445.5719409120. The cubic root of 11871966 is about 228.1257001542.

The spelling of 11871966 in words is "eleven million, eight hundred seventy-one thousand, nine hundred sixty-six".