12849817 has 2 divisors, whose sum is σ = 12849818. Its totient is φ = 12849816.

The previous prime is 12849799. The next prime is 12849827. The reversal of 12849817 is 71894821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12845056 + 4761 = 3584^2 + 69^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12849817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12849817.

It is not a weakly prime, because it can be changed into another prime (12849827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6424908 + 6424909.

It is an arithmetic number, because the mean of its divisors is an integer number (6424909).

Almost surely, 2^12849817 is an apocalyptic number.

It is an amenable number.

12849817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12849817 is an equidigital number, since it uses as much as digits as its factorization.

12849817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 40.

The square root of 12849817 is about 3584.6641404740. The cubic root of 12849817 is about 234.2244966079.

The spelling of 12849817 in words is "twelve million, eight hundred forty-nine thousand, eight hundred seventeen".