12833309 has 2 divisors, whose sum is σ = 12833310. Its totient is φ = 12833308.

The previous prime is 12833299. The next prime is 12833323. The reversal of 12833309 is 90333821.

12833309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10745284 + 2088025 = 3278^2 + 1445^2 .

It is an emirp because it is prime and its reverse (90333821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12833309 - 2⁸ = 12833053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12833329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6416654 + 6416655.

It is an arithmetic number, because the mean of its divisors is an integer number (6416655).

Almost surely, 2^12833309 is an apocalyptic number.

It is an amenable number.

12833309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12833309 is an equidigital number, since it uses as much as digits as its factorization.

12833309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 12833309 is about 3582.3608137651. The cubic root of 12833309 is about 234.1241518596.

The spelling of 12833309 in words is "twelve million, eight hundred thirty-three thousand, three hundred nine".