12880997 has 2 divisors, whose sum is σ = 12880998. Its totient is φ = 12880996.

The previous prime is 12880979. The next prime is 12880999. The reversal of 12880997 is 79908821.

Together with previous prime (12880979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8014561 + 4866436 = 2831^2 + 2206^2 .

It is a cyclic number.

It is not a de Polignac number, because 12880997 - 2⁸ = 12880741 is a prime.

Together with 12880999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12880999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6440498 + 6440499.

It is an arithmetic number, because the mean of its divisors is an integer number (6440499).

Almost surely, 2^12880997 is an apocalyptic number.

It is an amenable number.

12880997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12880997 is an equidigital number, since it uses as much as digits as its factorization.

12880997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 12880997 is about 3589.0105878919. The cubic root of 12880997 is about 234.4137916710.

The spelling of 12880997 in words is "twelve million, eight hundred eighty thousand, nine hundred ninety-seven".