11722806 has 24 divisors (see below), whose sum is σ = 26341224. Its totient is φ = 3907440.

The previous prime is 11722783. The next prime is 11722811. The reversal of 11722806 is 60822711.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 11722806.

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 11 ways as a sum of consecutive naturals, for example, 11575 + ... + 12546.

It is an arithmetic number, because the mean of its divisors is an integer number (1097551).

Almost surely, 2^11722806 is an apocalyptic number.

11722806 is an abundant number, since it is smaller than the sum of its proper divisors (14618418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11722806 is an equidigital number, since it uses as much as digits as its factorization.

11722806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24138 (or 24126 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 11722806 is about 3423.8583498737. The cubic root of 11722806 is about 227.1662763831.

The spelling of 11722806 in words is "eleven million, seven hundred twenty-two thousand, eight hundred six".