11866546 has 4 divisors (see below), whose sum is σ = 17799822. Its totient is φ = 5933272.

The previous prime is 11866487. The next prime is 11866549. The reversal of 11866546 is 64566811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 408321 = 3385^2 + 639^2 .

It is not an unprimeable number, because it can be changed into a prime (11866549) by changing a digit.

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 as a sum of consecutive naturals, namely, 2966635 + ... + 2966638.

Almost surely, 2^11866546 is an apocalyptic number.

11866546 is a deficient number, since it is larger than the sum of its proper divisors (5933276).

11866546 is an equidigital number, since it uses as much as digits as its factorization.

11866546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5933275.

The product of its digits is 34560, while the sum is 37.

The square root of 11866546 is about 3444.7853343859. The cubic root of 11866546 is about 228.0909788760.

The spelling of 11866546 in words is "eleven million, eight hundred sixty-six thousand, five hundred forty-six".