12790993 has 2 divisors, whose sum is σ = 12790994. Its totient is φ = 12790992.

The previous prime is 12790963. The next prime is 12790997. The reversal of 12790993 is 39909721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12552849 + 238144 = 3543^2 + 488^2 .

It is a cyclic number.

It is not a de Polignac number, because 12790993 - 2⁵ = 12790961 is a prime.

It is not a weakly prime, because it can be changed into another prime (12790997) 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 as a sum of consecutive naturals, namely, 6395496 + 6395497.

It is an arithmetic number, because the mean of its divisors is an integer number (6395497).

Almost surely, 2^12790993 is an apocalyptic number.

It is an amenable number.

12790993 is a deficient number, since it is larger than the sum of its proper divisors (1).

12790993 is an equidigital number, since it uses as much as digits as its factorization.

12790993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 12790993 is about 3576.4497759650. The cubic root of 12790993 is about 233.8665382078.

The spelling of 12790993 in words is "twelve million, seven hundred ninety thousand, nine hundred ninety-three".