12880775 has 6 divisors (see below), whose sum is σ = 15972192. Its totient is φ = 10304600.

The previous prime is 12880741. The next prime is 12880783. The reversal of 12880775 is 57708821.

It is not a de Polignac number, because 12880775 - 2⁶ = 12880711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 257591 + ... + 257640.

It is an arithmetic number, because the mean of its divisors is an integer number (2662032).

Almost surely, 2^12880775 is an apocalyptic number.

12880775 is a deficient number, since it is larger than the sum of its proper divisors (3091417).

12880775 is an equidigital number, since it uses as much as digits as its factorization.

12880775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515241 (or 515236 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 12880775 is about 3588.9796600148. The cubic root of 12880775 is about 234.4124449802.

The spelling of 12880775 in words is "twelve million, eight hundred eighty thousand, seven hundred seventy-five".