12850417 has 2 divisors, whose sum is σ = 12850418. Its totient is φ = 12850416.

The previous prime is 12850391. The next prime is 12850423. The reversal of 12850417 is 71405821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10491121 + 2359296 = 3239^2 + 1536^2 .

It is an emirp because it is prime and its reverse (71405821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12850417 is a prime.

It is not a weakly prime, because it can be changed into another prime (12850477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6425208 + 6425209.

It is an arithmetic number, because the mean of its divisors is an integer number (6425209).

Almost surely, 2^12850417 is an apocalyptic number.

It is an amenable number.

12850417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12850417 is an equidigital number, since it uses as much as digits as its factorization.

12850417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 12850417 is about 3584.7478293459. The cubic root of 12850417 is about 234.2281421205.

The spelling of 12850417 in words is "twelve million, eight hundred fifty thousand, four hundred seventeen".