12880817 has 4 divisors (see below), whose sum is σ = 13073136. Its totient is φ = 12688500.

The previous prime is 12880811. The next prime is 12880823. The reversal of 12880817 is 71808821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12880811) and next prime (12880823).

It is a cyclic number.

It is not a de Polignac number, because 12880817 - 2¹⁶ = 12815281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12880811) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 96059 + ... + 96192.

It is an arithmetic number, because the mean of its divisors is an integer number (3268284).

Almost surely, 2^12880817 is an apocalyptic number.

It is an amenable number.

12880817 is a deficient number, since it is larger than the sum of its proper divisors (192319).

12880817 is an equidigital number, since it uses as much as digits as its factorization.

12880817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192318.

The product of its (nonzero) digits is 7168, while the sum is 35.

The square root of 12880817 is about 3588.9855112552. The cubic root of 12880817 is about 234.4126997608.

The spelling of 12880817 in words is "twelve million, eight hundred eighty thousand, eight hundred seventeen".