13792813 has 2 divisors, whose sum is σ = 13792814. Its totient is φ = 13792812.

The previous prime is 13792811. The next prime is 13792817. The reversal of 13792813 is 31829731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13520329 + 272484 = 3677^2 + 522^2 .

It is a cyclic number.

It is not a de Polignac number, because 13792813 - 2¹ = 13792811 is a prime.

Together with 13792811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13792811) 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 as a sum of consecutive naturals, namely, 6896406 + 6896407.

It is an arithmetic number, because the mean of its divisors is an integer number (6896407).

Almost surely, 2^13792813 is an apocalyptic number.

It is an amenable number.

13792813 is a deficient number, since it is larger than the sum of its proper divisors (1).

13792813 is an equidigital number, since it uses as much as digits as its factorization.

13792813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 13792813 is about 3713.8676605393. The cubic root of 13792813 is about 239.8193837841.

The spelling of 13792813 in words is "thirteen million, seven hundred ninety-two thousand, eight hundred thirteen".