11629809 has 12 divisors (see below), whose sum is σ = 16894800. Its totient is φ = 7708824.

The previous prime is 11629801. The next prime is 11629811. The reversal of 11629809 is 90892611.

It is not a de Polignac number, because 11629809 - 2³ = 11629801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11629801) 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 11 ways as a sum of consecutive naturals, for example, 1999 + ... + 5220.

It is an arithmetic number, because the mean of its divisors is an integer number (1407900).

Almost surely, 2^11629809 is an apocalyptic number.

It is an amenable number.

11629809 is a deficient number, since it is larger than the sum of its proper divisors (5264991).

11629809 is a wasteful number, since it uses less digits than its factorization.

11629809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7404 (or 7401 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 11629809 is about 3410.2505773037. The cubic root of 11629809 is about 226.5639776582.

The spelling of 11629809 in words is "eleven million, six hundred twenty-nine thousand, eight hundred nine".