12880769 has 4 divisors (see below), whose sum is σ = 14051760. Its totient is φ = 11709780.

The previous prime is 12880741. The next prime is 12880783. The reversal of 12880769 is 96708821.

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 a cyclic number.

It is not a de Polignac number, because 12880769 - 2⁸ = 12880513 is a prime.

It is a super-2 number, since 2×12880769² = 331828420062722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 585479 + ... + 585500.

It is an arithmetic number, because the mean of its divisors is an integer number (3512940).

Almost surely, 2^12880769 is an apocalyptic number.

It is an amenable number.

12880769 is a deficient number, since it is larger than the sum of its proper divisors (1170991).

12880769 is a wasteful number, since it uses less digits than its factorization.

12880769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170990.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 12880769 is about 3588.9788241225. The cubic root of 12880769 is about 234.4124085830.

The spelling of 12880769 in words is "twelve million, eight hundred eighty thousand, seven hundred sixty-nine".