12784829 has 2 divisors, whose sum is σ = 12784830. Its totient is φ = 12784828.

The previous prime is 12784823. The next prime is 12784831. The reversal of 12784829 is 92848721.

12784829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12602500 + 182329 = 3550^2 + 427^2 .

It is a cyclic number.

It is not a de Polignac number, because 12784829 - 2²⁰ = 11736253 is a prime.

It is a Sophie Germain prime.

Together with 12784831, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12784823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6392414 + 6392415.

It is an arithmetic number, because the mean of its divisors is an integer number (6392415).

Almost surely, 2^12784829 is an apocalyptic number.

It is an amenable number.

12784829 is a deficient number, since it is larger than the sum of its proper divisors (1).

12784829 is an equidigital number, since it uses as much as digits as its factorization.

12784829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 41.

The square root of 12784829 is about 3575.5879236847. The cubic root of 12784829 is about 233.8289652853.

The spelling of 12784829 in words is "twelve million, seven hundred eighty-four thousand, eight hundred twenty-nine".