11099905 has 8 divisors (see below), whose sum is σ = 13348584. Its totient is φ = 8860800.

The previous prime is 11099903. The next prime is 11099911. The reversal of 11099905 is 50999011.

It can be written as a sum of positive squares in 4 ways, for example, as 2666689 + 8433216 = 1633^2 + 2904^2 .

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

It is not a de Polignac number, because 11099905 - 2¹ = 11099903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11099903) 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 in 7 ways as a sum of consecutive naturals, for example, 475 + ... + 4735.

It is an arithmetic number, because the mean of its divisors is an integer number (1668573).

Almost surely, 2^11099905 is an apocalyptic number.

It is an amenable number.

11099905 is a deficient number, since it is larger than the sum of its proper divisors (2248679).

11099905 is an equidigital number, since it uses as much as digits as its factorization.

11099905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787.

The product of its (nonzero) digits is 3645, while the sum is 34.

The square root of 11099905 is about 3331.6519926307. The cubic root of 11099905 is about 223.0692740601.

The spelling of 11099905 in words is "eleven million, ninety-nine thousand, nine hundred five".