13209933 has 24 divisors (see below), whose sum is σ = 19569088. Its totient is φ = 7920000.

The previous prime is 13209929. The next prime is 13209947. The reversal of 13209933 is 33990231.

It is not a de Polignac number, because 13209933 - 2² = 13209929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13209933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13209953) 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 23 ways as a sum of consecutive naturals, for example, 54693 + ... + 54933.

Almost surely, 2^13209933 is an apocalyptic number.

It is an amenable number.

13209933 is a deficient number, since it is larger than the sum of its proper divisors (6359155).

13209933 is a wasteful number, since it uses less digits than its factorization.

13209933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 13209933 is about 3634.5471519847. The cubic root of 13209933 is about 236.3924154621.

The spelling of 13209933 in words is "thirteen million, two hundred nine thousand, nine hundred thirty-three".