11009899 has 4 divisors (see below), whose sum is σ = 11165040. Its totient is φ = 10854760.

The previous prime is 11009881. The next prime is 11009927. The reversal of 11009899 is 99890011.

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

It is a cyclic number.

It is not a de Polignac number, because 11009899 - 2¹³ = 11001707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11009819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77464 + ... + 77605.

It is an arithmetic number, because the mean of its divisors is an integer number (2791260).

Almost surely, 2^11009899 is an apocalyptic number.

11009899 is a deficient number, since it is larger than the sum of its proper divisors (155141).

11009899 is an equidigital number, since it uses as much as digits as its factorization.

11009899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155140.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 11009899 is about 3318.1167851659. The cubic root of 11009899 is about 222.4647017185.

The spelling of 11009899 in words is "eleven million, nine thousand, eight hundred ninety-nine".