11643206 has 4 divisors (see below), whose sum is σ = 17464812. Its totient is φ = 5821602.

The previous prime is 11643161. The next prime is 11643209. The reversal of 11643206 is 60234611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60234611 = 401 ⋅150211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643209) 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, 2910800 + ... + 2910803.

It is an arithmetic number, because the mean of its divisors is an integer number (4366203).

Almost surely, 2^11643206 is an apocalyptic number.

11643206 is a deficient number, since it is larger than the sum of its proper divisors (5821606).

11643206 is an equidigital number, since it uses as much as digits as its factorization.

11643206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821605.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 11643206 is about 3412.2142371194. The cubic root of 11643206 is about 226.6509413350.

Adding to 11643206 its reverse (60234611), we get a palindrome (71877817).

The spelling of 11643206 in words is "eleven million, six hundred forty-three thousand, two hundred six".