11000805 has 8 divisors (see below), whose sum is σ = 17601312. Its totient is φ = 5867088.

The previous prime is 11000789. The next prime is 11000809. The reversal of 11000805 is 50800011.

It is a happy number.

11000805 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11000805 - 2⁴ = 11000789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 733387 = 11000805 / (1 + 1 + 0 + 0 + 0 + 8 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366679 + ... + 366708.

It is an arithmetic number, because the mean of its divisors is an integer number (2200164).

Almost surely, 2^11000805 is an apocalyptic number.

11000805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11000805 is a deficient number, since it is larger than the sum of its proper divisors (6600507).

11000805 is an equidigital number, since it uses as much as digits as its factorization.

11000805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733395.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 11000805 is about 3316.7461464514. The cubic root of 11000805 is about 222.4034340882.

Adding to 11000805 its reverse (50800011), we get a palindrome (61800816).

The spelling of 11000805 in words is "eleven million, eight hundred five", and thus it is an aban number.