12790091 has 2 divisors, whose sum is σ = 12790092. Its totient is φ = 12790090.

The previous prime is 12790061. The next prime is 12790109. The reversal of 12790091 is 19009721.

Together with next prime (12790109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12790091 - 2⁶ = 12790027 is a prime.

It is a super-3 number, since 3×12790091³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12790061) 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, 6395045 + 6395046.

It is an arithmetic number, because the mean of its divisors is an integer number (6395046).

Almost surely, 2^12790091 is an apocalyptic number.

12790091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12790091 is an equidigital number, since it uses as much as digits as its factorization.

12790091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 12790091 is about 3576.3236710343. The cubic root of 12790091 is about 233.8610407827.

The spelling of 12790091 in words is "twelve million, seven hundred ninety thousand, ninety-one".