12793961 has 2 divisors, whose sum is σ = 12793962. Its totient is φ = 12793960.

The previous prime is 12793943. The next prime is 12793969. The reversal of 12793961 is 16939721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11022400 + 1771561 = 3320^2 + 1331^2 .

It is a cyclic number.

It is not a de Polignac number, because 12793961 - 2¹⁰ = 12792937 is a prime.

It is not a weakly prime, because it can be changed into another prime (12793969) 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, 6396980 + 6396981.

It is an arithmetic number, because the mean of its divisors is an integer number (6396981).

Almost surely, 2^12793961 is an apocalyptic number.

It is an amenable number.

12793961 is a deficient number, since it is larger than the sum of its proper divisors (1).

12793961 is an equidigital number, since it uses as much as digits as its factorization.

12793961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 38.

The square root of 12793961 is about 3576.8646885226. The cubic root of 12793961 is about 233.8846254719.

Subtracting 12793961 from its reverse (16939721), we obtain a triangular number (4145760 = T₂₈₇₉).

The spelling of 12793961 in words is "twelve million, seven hundred ninety-three thousand, nine hundred sixty-one".