12280687 has 2 divisors, whose sum is σ = 12280688. Its totient is φ = 12280686.

The previous prime is 12280661. The next prime is 12280693. The reversal of 12280687 is 78608221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12280687 - 2¹⁵ = 12247919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12280087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6140343 + 6140344.

It is an arithmetic number, because the mean of its divisors is an integer number (6140344).

Almost surely, 2^12280687 is an apocalyptic number.

12280687 is a deficient number, since it is larger than the sum of its proper divisors (1).

12280687 is an equidigital number, since it uses as much as digits as its factorization.

12280687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 12280687 is about 3504.3811151186. The cubic root of 12280687 is about 230.7141445125.

The spelling of 12280687 in words is "twelve million, two hundred eighty thousand, six hundred eighty-seven".