11941866 has 12 divisors (see below), whose sum is σ = 25874082. Its totient is φ = 3980616.

The previous prime is 11941819. The next prime is 11941883. The reversal of 11941866 is 66814911.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6395841 + 5546025 = 2529^2 + 2355^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11941866.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 331701 + ... + 331736.

Almost surely, 2^11941866 is an apocalyptic number.

11941866 is an abundant number, since it is smaller than the sum of its proper divisors (13932216).

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

11941866 is a wasteful number, since it uses less digits than its factorization.

11941866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663445 (or 663442 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 11941866 is about 3455.7005078565. The cubic root of 11941866 is about 228.5725453442.

The spelling of 11941866 in words is "eleven million, nine hundred forty-one thousand, eight hundred sixty-six".