12880393 has 2 divisors, whose sum is σ = 12880394. Its totient is φ = 12880392.

The previous prime is 12880337. The next prime is 12880409. The reversal of 12880393 is 39308821.

12880393 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12730624 + 149769 = 3568^2 + 387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12880393 is a prime.

It is not a weakly prime, because it can be changed into another prime (12880093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6440196 + 6440197.

It is an arithmetic number, because the mean of its divisors is an integer number (6440197).

Almost surely, 2^12880393 is an apocalyptic number.

It is an amenable number.

12880393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12880393 is an equidigital number, since it uses as much as digits as its factorization.

12880393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 12880393 is about 3588.9264411520. The cubic root of 12880393 is about 234.4101276652.

The spelling of 12880393 in words is "twelve million, eight hundred eighty thousand, three hundred ninety-three".