12880705 has 8 divisors (see below), whose sum is σ = 15480000. Its totient is φ = 10289136.

The previous prime is 12880691. The next prime is 12880709. The reversal of 12880705 is 50708821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12880705 - 2¹⁹ = 12356417 is a prime.

It is a super-2 number, since 2×12880705² = 331825122594050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12880709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2796 + ... + 5794.

It is an arithmetic number, because the mean of its divisors is an integer number (1935000).

Almost surely, 2^12880705 is an apocalyptic number.

It is an amenable number.

12880705 is a deficient number, since it is larger than the sum of its proper divisors (2599295).

12880705 is an equidigital number, since it uses as much as digits as its factorization.

12880705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 12880705 is about 3588.9699079262. The cubic root of 12880705 is about 234.4120203448.

The spelling of 12880705 in words is "twelve million, eight hundred eighty thousand, seven hundred five".