11985206 has 4 divisors (see below), whose sum is σ = 17977812. Its totient is φ = 5992602.

The previous prime is 11985203. The next prime is 11985229. The reversal of 11985206 is 60258911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60258911 = 61 ⋅987851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11985203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2996300 + ... + 2996303.

It is an arithmetic number, because the mean of its divisors is an integer number (4494453).

Almost surely, 2^11985206 is an apocalyptic number.

11985206 is a deficient number, since it is larger than the sum of its proper divisors (5992606).

11985206 is an equidigital number, since it uses as much as digits as its factorization.

11985206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992605.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 11985206 is about 3461.9656266347. The cubic root of 11985206 is about 228.8487270297.

The spelling of 11985206 in words is "eleven million, nine hundred eighty-five thousand, two hundred six".