12280767 has 4 divisors (see below), whose sum is σ = 16374360. Its totient is φ = 8187176.

The previous prime is 12280759. The next prime is 12280769. The reversal of 12280767 is 76708221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12280767 - 2³ = 12280759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12280769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2046792 + ... + 2046797.

It is an arithmetic number, because the mean of its divisors is an integer number (4093590).

Almost surely, 2^12280767 is an apocalyptic number.

12280767 is a deficient number, since it is larger than the sum of its proper divisors (4093593).

12280767 is an equidigital number, since it uses as much as digits as its factorization.

12280767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093592.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 12280767 is about 3504.3925293837. The cubic root of 12280767 is about 230.7146454913.

Adding to 12280767 its reverse (76708221), we get a palindrome (88988988).

The spelling of 12280767 in words is "twelve million, two hundred eighty thousand, seven hundred sixty-seven".