11099805 has 16 divisors (see below), whose sum is σ = 18173760. Its totient is φ = 5781888.

The previous prime is 11099791. The next prime is 11099821. The reversal of 11099805 is 50899011.

It is not a de Polignac number, because 11099805 - 2¹⁴ = 11083421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7960 + ... + 9249.

It is an arithmetic number, because the mean of its divisors is an integer number (1135860).

Almost surely, 2^11099805 is an apocalyptic number.

11099805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11099805 is a deficient number, since it is larger than the sum of its proper divisors (7073955).

11099805 is a wasteful number, since it uses less digits than its factorization.

11099805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17260.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 11099805 is about 3331.6369850270. The cubic root of 11099805 is about 223.0686041747.

The spelling of 11099805 in words is "eleven million, ninety-nine thousand, eight hundred five".