12847906 has 4 divisors (see below), whose sum is σ = 19271862. Its totient is φ = 6423952.

The previous prime is 12847871. The next prime is 12847921. The reversal of 12847906 is 60974821.

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., 9272025 + 3575881 = 3045^2 + 1891^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211975 + ... + 3211978.

Almost surely, 2^12847906 is an apocalyptic number.

12847906 is a deficient number, since it is larger than the sum of its proper divisors (6423956).

12847906 is an equidigital number, since it uses as much as digits as its factorization.

12847906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423955.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 12847906 is about 3584.3975783945. The cubic root of 12847906 is about 234.2128848938.

The spelling of 12847906 in words is "twelve million, eight hundred forty-seven thousand, nine hundred six".