12280706 has 4 divisors (see below), whose sum is σ = 18421062. Its totient is φ = 6140352.

The previous prime is 12280693. The next prime is 12280721. The reversal of 12280706 is 60708221.

12280706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 7480225 + 4800481 = 2735^2 + 2191^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3070175 + ... + 3070178.

Almost surely, 2^12280706 is an apocalyptic number.

12280706 is a deficient number, since it is larger than the sum of its proper divisors (6140356).

12280706 is an equidigital number, since it uses as much as digits as its factorization.

12280706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6140355.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12280706 is about 3504.3838260099. The cubic root of 12280706 is about 230.7142634952.

Adding to 12280706 its reverse (60708221), we get a palindrome (72988927).

The spelling of 12280706 in words is "twelve million, two hundred eighty thousand, seven hundred six".