11189806 has 4 divisors (see below), whose sum is σ = 16784712. Its totient is φ = 5594902.

The previous prime is 11189777. The next prime is 11189819. The reversal of 11189806 is 60898111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2797450 + ... + 2797453.

It is an arithmetic number, because the mean of its divisors is an integer number (4196178).

Almost surely, 2^11189806 is an apocalyptic number.

11189806 is a deficient number, since it is larger than the sum of its proper divisors (5594906).

11189806 is an equidigital number, since it uses as much as digits as its factorization.

11189806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5594905.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 11189806 is about 3345.1167393680. The cubic root of 11189806 is about 223.6698873645.

The spelling of 11189806 in words is "eleven million, one hundred eighty-nine thousand, eight hundred six".