11866445 has 8 divisors (see below), whose sum is σ = 14278680. Its totient is φ = 9467200.

The previous prime is 11866417. The next prime is 11866451. The reversal of 11866445 is 54466811.

It can be written as a sum of positive squares in 4 ways, for example, as 724201 + 11142244 = 851^2 + 3338^2 .

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

It is not a de Polignac number, because 11866445 - 2¹⁰ = 11865421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106 + ... + 4995.

It is an arithmetic number, because the mean of its divisors is an integer number (1784835).

Almost surely, 2^11866445 is an apocalyptic number.

It is an amenable number.

11866445 is a deficient number, since it is larger than the sum of its proper divisors (2412235).

11866445 is an equidigital number, since it uses as much as digits as its factorization.

11866445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495.

The product of its digits is 23040, while the sum is 35.

The square root of 11866445 is about 3444.7706745152. The cubic root of 11866445 is about 228.0903317556.

The spelling of 11866445 in words is "eleven million, eight hundred sixty-six thousand, four hundred forty-five".