12870706 has 4 divisors (see below), whose sum is σ = 19306062. Its totient is φ = 6435352.

The previous prime is 12870701. The next prime is 12870721. The reversal of 12870706 is 60707821.

It is a happy number.

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., 11840481 + 1030225 = 3441^2 + 1015^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12870701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217675 + ... + 3217678.

Almost surely, 2^12870706 is an apocalyptic number.

12870706 is a deficient number, since it is larger than the sum of its proper divisors (6435356).

12870706 is an equidigital number, since it uses as much as digits as its factorization.

12870706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6435355.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 12870706 is about 3587.5766193909. The cubic root of 12870706 is about 234.3513483926.

The spelling of 12870706 in words is "twelve million, eight hundred seventy thousand, seven hundred six".