11609903 has 8 divisors (see below), whose sum is σ = 12042240. Its totient is φ = 11181240.

The previous prime is 11609891. The next prime is 11609909. The reversal of 11609903 is 30990611.

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 11609903 - 2⁶ = 11609839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11609909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6626 + ... + 8192.

It is an arithmetic number, because the mean of its divisors is an integer number (1505280).

Almost surely, 2^11609903 is an apocalyptic number.

11609903 is a deficient number, since it is larger than the sum of its proper divisors (432337).

11609903 is a wasteful number, since it uses less digits than its factorization.

11609903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 11609903 is about 3407.3307734941. The cubic root of 11609903 is about 226.4346388147.

The spelling of 11609903 in words is "eleven million, six hundred nine thousand, nine hundred three".