12940727 has 2 divisors, whose sum is σ = 12940728. Its totient is φ = 12940726.

The previous prime is 12940717. The next prime is 12940747. The reversal of 12940727 is 72704921.

It is a weak prime.

It is an emirp because it is prime and its reverse (72704921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12940727 - 2¹² = 12936631 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12940693 and 12940702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12940717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6470363 + 6470364.

It is an arithmetic number, because the mean of its divisors is an integer number (6470364).

Almost surely, 2^12940727 is an apocalyptic number.

12940727 is a deficient number, since it is larger than the sum of its proper divisors (1).

12940727 is an equidigital number, since it uses as much as digits as its factorization.

12940727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 12940727 is about 3597.3221985249. The cubic root of 12940727 is about 234.7755635990.

The spelling of 12940727 in words is "twelve million, nine hundred forty thousand, seven hundred twenty-seven".