12880447 has 2 divisors, whose sum is σ = 12880448. Its totient is φ = 12880446.

The previous prime is 12880411. The next prime is 12880457. The reversal of 12880447 is 74408821.

12880447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12880447 - 2⁷ = 12880319 is a prime.

It is a super-3 number, since 3×12880447³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12880457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6440223 + 6440224.

It is an arithmetic number, because the mean of its divisors is an integer number (6440224).

Almost surely, 2^12880447 is an apocalyptic number.

12880447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12880447 is an equidigital number, since it uses as much as digits as its factorization.

12880447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 12880447 is about 3588.9339642852. The cubic root of 12880447 is about 234.4104552466.

The spelling of 12880447 in words is "twelve million, eight hundred eighty thousand, four hundred forty-seven".