12633309 has 24 divisors (see below), whose sum is σ = 20689760. Its totient is φ = 7363872.

The previous prime is 12633253. The next prime is 12633311. The reversal of 12633309 is 90333621.

It is not a de Polignac number, because 12633309 - 2¹¹ = 12631261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12633359) 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, 619 + ... + 5064.

Almost surely, 2^12633309 is an apocalyptic number.

12633309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12633309 is a deficient number, since it is larger than the sum of its proper divisors (8056451).

12633309 is a wasteful number, since it uses less digits than its factorization.

12633309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721 (or 5718 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 12633309 is about 3554.3366469709. The cubic root of 12633309 is about 232.9015468175.

The spelling of 12633309 in words is "twelve million, six hundred thirty-three thousand, three hundred nine".