11609899 has 8 divisors (see below), whose sum is σ = 13291488. Its totient is φ = 9934080.

The previous prime is 11609891. The next prime is 11609909. The reversal of 11609899 is 99890611.

11609899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11609899 - 2³ = 11609891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11609891) 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, 4539 + ... + 6619.

It is an arithmetic number, because the mean of its divisors is an integer number (1661436).

Almost surely, 2^11609899 is an apocalyptic number.

11609899 is a deficient number, since it is larger than the sum of its proper divisors (1681589).

11609899 is an equidigital number, since it uses as much as digits as its factorization.

11609899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885.

The product of its (nonzero) digits is 34992, while the sum is 43.

The square root of 11609899 is about 3407.3301865243. The cubic root of 11609899 is about 226.4346128099.

The spelling of 11609899 in words is "eleven million, six hundred nine thousand, eight hundred ninety-nine".